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All questions of 2015 for SSC CGL Exam

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In each of the following questions, a series is given, with one term missing. Choose the correct alternative from the given ones that will complete the series.
 
Q. 0, 7, 26,  63, ? , 215
  • a)
    123
  • b)
    87
  • c)
    96
  • d)
    124
Correct answer is option 'D'. Can you explain this answer?

Pranab Goyal answered
Solution:
The given series is:
0, 7, 26, 63, ?

To find the missing term, we need to observe the pattern followed in the given series.

Pattern:
The given series is formed by adding consecutive odd numbers to the previous term of the series.
- The first term of the series is 0.
- To obtain the second term, we add 1 odd number to the first term, i.e., 1, so the second term is 0+1=1.
- To obtain the third term, we add 2 odd numbers to the second term, i.e., 3+3=6, so the third term is 1+6=7.
- To obtain the fourth term, we add 3 odd numbers to the third term, i.e., 5+7+9=21, so the fourth term is 7+21=28.
- To obtain the fifth term, we add 4 odd numbers to the fourth term, i.e., 11+13+15+17=56, so the fifth term is 28+56=84.

Therefore, the missing term in the given series is the sum of 5 odd numbers starting from 19, i.e., 19+21+23+25+27=115.

Hence, the correct answer is option (D) 124.

A man takes 6 km. distance to go around the rectangular area. If the area of the rectangle is 2 sq. km., find the difference between length, and breadth.
  • a)
         2 km.
  • b)
    0.5 km.
  • c)
    1 km
  • d)
      0.75 km
Correct answer is option 'C'. Can you explain this answer?

Ishaan Roy answered
To solve this problem, let's assume the length of the rectangle as 'l' and the breadth as 'b'.

Given that the perimeter of the rectangle is 6 km, we can write the equation as:
2(l + b) = 6

Simplifying the equation, we have:
l + b = 3

Now, we are given that the area of the rectangle is 2 sq. km. The formula for the area of a rectangle is:
Area = length × breadth

Substituting the given values, we get:
2 = l × b

Now, we have two equations:
l + b = 3
l × b = 2

We can solve this system of equations to find the values of 'l' and 'b'.

To find the difference between the length and breadth, we can subtract the smaller value from the larger value. Let's assume that 'l' is the larger value.

l = 3 - b
Substituting this value in the second equation:
(3 - b) × b = 2

Expanding and rearranging the equation, we get:
b^2 - 3b + 2 = 0

Factoring the equation, we have:
(b - 1)(b - 2) = 0

So, the possible values for 'b' are 1 and 2.

Case 1: b = 1
Substituting this value in the equation l + b = 3, we get:
l + 1 = 3
l = 2

Case 2: b = 2
Substituting this value in the equation l + b = 3, we get:
l + 2 = 3
l = 1

Therefore, the possible values for the length and breadth are:
Length (l) = 2 km, Breadth (b) = 1 km
or
Length (l) = 1 km, Breadth (b) = 2 km

In both cases, the difference between the length and breadth is 1 km. Hence, the correct answer is option C) 1 km.

The velocity of sound in moist air is more than in dry air because the moist air has
  • a)
    less density than dry air.
  • b)
    less pressure than dry air.
  • c)
    more pressure than the air.
  • d)
    more density than dry air.
Correct answer is option 'A'. Can you explain this answer?

Abhiram Mehra answered
Explanation:
The velocity of sound depends on the medium through which it travels. The speed of sound is higher in moist air as compared to dry air due to the following reasons:

1. Effect of density:
Moist air has a higher density than dry air. The density of air decreases as the water vapor content increases. The molecules of water vapor in the air occupy some space and displace some of the air molecules. This results in the decrease in the density of the air. As the density of air decreases, the velocity of sound also decreases. Therefore, dry air has a lower velocity of sound than moist air.

2. Effect of temperature:
The velocity of sound also depends on the temperature of the medium. Moist air has a higher temperature than dry air due to the presence of water vapor. As the temperature of the air increases, the velocity of sound also increases. Hence, moist air has a higher velocity of sound than dry air.

3. Effect of humidity:
Humidity is the amount of water vapor present in the air. The velocity of sound also depends on the humidity of the air. As the humidity of the air increases, the velocity of sound also increases. Therefore, moist air has a higher velocity of sound than dry air due to the higher humidity.

Conclusion:
Therefore, it can be concluded that the velocity of sound is more in moist air than in dry air due to the higher density, temperature, and humidity of the moist air.

Direction (Q. 80-84) : In the following questions, some parts of the sentences have errors and some are correct. Find out which part of a sentence has an error. The number of that part is the answer. If a sentence is free from error, your answer is (4) i.e. No error.
Q. After he was caught cheating he was disqualified to appear at the examination.
  • a)
    After he was caught cheating
  • b)
    he was disqualified
  • c)
    to appear at the examination
  • d)
    No error
Correct answer is option 'C'. Can you explain this answer?

Arnav Saini answered
Error Spotting:

The given sentence is: After he was caught cheating he was disqualified to appear at the examination.

The error is in part (c) of the sentence.

The correct sentence should be: After he was caught cheating he was disqualified from appearing at the examination.

Explanation:

The correct preposition to be used with "disqualified" is "from" and not "to". So, the correct sentence should be "After he was caught cheating he was disqualified from appearing at the examination".

After ‘PROM’ is programmed, we can only _ the information.
  • a)
    read
  • b)
    write
  • c)
    read and write
  • d)
    remove
Correct answer is option 'A'. Can you explain this answer?

Nilesh Banerjee answered
After a long day at work, I usually like to relax and unwind. I might go for a walk or do some light exercise to clear my mind and de-stress. Then, I'll make myself a nice dinner and enjoy it while watching a TV show or reading a book. Before bed, I like to do some light stretching or meditation to help me relax and prepare for a good night's sleep.

‘Which of the following can be found as pollutants in the drinking water in some parts of India? Select the correct answer using the code given below.
 
  • a)
    Arsenic
  • b)
    Sorbitol
  • c)
       Fluoride
  • d)
       Formaldehyde
  • e)
    Uranium
Correct answer is option 'C'. Can you explain this answer?

Malavika Rane answered
Introduction to Drinking Water Pollutants in India
In various regions of India, drinking water contamination is a pressing issue. Several pollutants have been identified, affecting public health and safety.

Common Pollutants Found
- Arsenic: This toxic element is often found in groundwater, especially in states like West Bengal and Assam. Long-term exposure can lead to serious health issues, including skin lesions and cancer.
- Fluoride: While fluoride is beneficial in small amounts for dental health, excessive consumption can lead to dental and skeletal fluorosis. Certain areas in India, particularly in Tamil Nadu and Andhra Pradesh, report high fluoride levels in drinking water.
- Sorbitol: This sugar alcohol is mainly used as a sweetener and is not typically considered a pollutant in drinking water. It is not naturally found in water sources and is not a concern in this context.
- Formaldehyde: Although present in some industrial waste, it is less commonly found in drinking water supplies and is not a significant pollutant in India.
- Uranium: Certain regions in India, particularly near mining areas, can have uranium contamination. However, it is not as widespread as arsenic or fluoride issues.

Correct Answer: Fluoride
The correct answer to the question regarding pollutants in drinking water in India is option 'C', Fluoride. High fluoride levels have been documented in several states, leading to substantial health concerns for affected populations. Addressing and monitoring fluoride levels is essential for ensuring safe drinking water.

Directions (169-173): In the following questions, some parts of the sentences have errors and some are correct. Find out which part of a sentence has an error. The number of that part is the answer. If a sentence is free from error, your answer is (4) i.e. No error.
 
Q.You are required to give an explanation for your conduct within two days of the receipt of this letter.
  • a)
    No error
  • b)
    for your conduct
  • c)
    within two days of the receipt of his letter
  • d)
    You are required to give an explanation
Correct answer is option 'C'. Can you explain this answer?

Malavika Rane answered
Explanation:

Errors in the sentence:
1. The error is in part (c) "within two days of the receipt of his letter."
2. The pronoun "his" is incorrect as it should be "this" to refer back to the current letter being mentioned.

Corrected sentence:
You are required to give an explanation for your conduct within two days of the receipt of this letter.
Therefore, the correct answer is option (c).

P, Q, R, S, T, U are 6 members of a family in which there are two married couples. T, a teacher is married to a doctor who is mother of Rand U. Q, the lawyer is married to P - P has one son and one grandson. Of the two married ladies one is a house wife. There is also one student and one male engineer in the family. Which of the following is true about the grand-daughter of the family?
  • a)
    She is a lawyer
  • b)
    She is an engineer
  • c)
    She is a student
  • d)
    She is a doctor ​
Correct answer is option 'C'. Can you explain this answer?

Pranab Goyal answered
Explanation:

Given Information:
- T, a teacher is married to a doctor who is the mother of R and U.
- Q, the lawyer is married to P.
- P has one son and one grandson.
- There is one student and one male engineer in the family.
- One of the married ladies is a housewife.

Analysis:
- T is married to a doctor, who is the mother of R and U. This means R and U are siblings.
- Q is married to P, who has one son and one grandson.
- Since there is one student and one male engineer in the family, they must be the son and grandson of P.
- The son is the engineer, so the grandson is the student.
- The grandson (student) is either R or U.
- Since one of the married ladies is a housewife, the other married lady is the doctor.
- The granddaughter of the family must be the daughter of Q and P, who is a student.
Therefore, the correct answer is option C - She is a student.

Which one of the following is an indigenously built light combat aircraft of India?
  • a)
    Ajay
  • b)
    Multirol
  • c)
    Arjun
  • d)
    Vikrant
Correct answer is option 'D'. Can you explain this answer?

Aarav Sharma answered
Indigenously built light combat aircraft of India:

The indigenously built light combat aircraft of India is the Vikrant. Let's understand why it is the correct answer:

1. Introduction:
The light combat aircraft (LCA) is a fighter aircraft designed and manufactured in India. The aim of developing an indigenous aircraft was to reduce dependence on foreign countries for military equipment and to boost the domestic defense industry.

2. Development of LCA:
The development of the LCA began in the 1980s by the Aeronautical Development Agency (ADA) in collaboration with Hindustan Aeronautics Limited (HAL). The project faced several challenges, including technical difficulties, funding issues, and delays. However, after years of research and development, the first indigenously built LCA, named Tejas, was introduced.

3. Tejas - The Initial Version:
The initial version of the LCA, known as Tejas, is a single-seat, single-engine, multirole fighter aircraft. It was designed to meet the requirements of the Indian Air Force and Indian Navy. Tejas is equipped with modern avionics, advanced radar systems, and a state-of-the-art electronic warfare suite.

4. Upgraded Version - LCA Mk 1A:
To enhance the capabilities of Tejas, an upgraded version called LCA Mk 1A was developed. It incorporates advanced features such as an improved active electronically scanned array (AESA) radar, air-to-air refueling capability, updated avionics, and enhanced maintainability.

5. The Indigenous Aircraft Carrier - Vikrant:
The Vikrant is an indigenously built aircraft carrier by India. It is designed to operate various naval aircraft, including the LCA. The LCA has been modified to meet the requirements of carrier-based operations, such as reinforced landing gear, stronger airframe, and arrester hook.

6. Significance of Vikrant:
The development of the Vikrant aircraft carrier and the integration of the LCA demonstrate India's progress in building a strong defense infrastructure. It reduces the country's dependence on foreign carriers and aircraft, enhances its naval capabilities, and strengthens its indigenous defense industry.

Conclusion:
The indigenously built light combat aircraft of India is the Vikrant, which is designed to operate from the indigenous aircraft carrier of the same name. The development of indigenous military equipment like the LCA and aircraft carriers like Vikrant showcases India's commitment to self-reliance in defense production.

Direction (Q. 83-87) : In the following questions, four alternatives are given for the Idiom/ Phrase underline in the sentence. Choose the alternative which best expresses the meaning of the Idiom/Phrase.
Q. Instead of keeping his promise of helping me with office work, he just left me high and dry.
  • a)
    left me without a drop of water
  • b)
    left me in a state of anger
  • c)
    left me alone to do the work
  • d)
    left me feeling like a fool
Correct answer is option 'C'. Can you explain this answer?

Aarav Sharma answered
Explanation:

Idiom/Phrase: Left me high and dry

Meaning: To abandon someone in a difficult situation or without any help or support.

Example: Instead of keeping his promise of helping me with office work, he just left me high and dry.

Option (a) left me without a drop of water - This option is not related to the context of the sentence and does not express the meaning of the given idiom.

Option (b) left me in a state of anger - This option is not related to the context of the sentence and does not express the meaning of the given idiom.

Option (c) left me alone to do the work - This option is the correct answer as it expresses the meaning of the given idiom. The person who promised to help the speaker with office work abandoned him and left him to do the work alone.

Option (d) left me feeling like a fool - This option is not related to the context of the sentence and does not express the meaning of the given idiom.

Therefore, option (c) is the correct answer.

In a certain code language ‘481’ means ‘sky is blue’, ‘246’ means ‘sea is deep’ and ‘698’ means ‘sea looks blue’. What number is the code for ‘blue’
  • a)
    8                  
  • b)
    6
  • c)
    1                  
  • d)
    9 ​
Correct answer is option 'A'. Can you explain this answer?

Abhiram Mehra answered
Explanation:

To find the code for the word "blue", we need to look for the number that appears in all three given codes.

Let's analyze each code:

- In the code 481, the number 8 appears.
- In the code 246, the number 6 appears.
- In the code 698, the number 9 appears.

Since the number 8 appears in all three codes, we can conclude that the code for the word "blue" is 8.

Therefore, the correct answer is option 'A' which is 8.

I do not know who you consider to be the best dancer.
  • a)
    I do not know
  • b)
    who you consider
  • c)
    to be the best dancer
  • d)
    No error
Correct answer is option 'C'. Can you explain this answer?

Malavika Rane answered
Explanation:

The given sentence is grammatically correct and does not contain any error. Let's break down the sentence into its components to understand it better:

1. "I do not know" - This phrase indicates that the speaker lacks knowledge or is uncertain about something. In this context, it implies that the speaker is unaware of the identity of the best dancer.

2. "who you consider" - This is a subordinate clause that introduces the concept of someone's opinion or judgment. It suggests that the speaker is referring to the judgment of another person in determining the best dancer.

3. "to be the best dancer" - This phrase is an infinitive clause that functions as the complement of the verb "consider." It specifies the quality or attribute being evaluated, which is the status of being the best dancer.

Example: Let's consider an example to illustrate the usage of this sentence. Suppose there are three people discussing a dance competition. Person A asks Person B, "Who do you consider to be the best dancer?" Person B replies, "I do not know." In this scenario, Person B is uncertain about who they perceive as the best dancer. The given sentence accurately conveys this idea.

Therefore, the correct answer is option C - "to be the best dancer."

In each of the following questions, find the odd word/letters/number pair from the given alternatives.
  • a)
    Agitate
  • b)
    Affirm
  • c)
    Attack
  • d)
    Affect
Correct answer is option 'B'. Can you explain this answer?

Malavika Rane answered
Explanation:

To find the odd word/letters/number pair, we need to identify the word or letter that does not belong to the same category as the others.

In this question, we need to find the odd word from the given options: Agitate, Affirm, Attack, Affect.

Category:
The category we can consider here is verbs.

- Agitate: It is a verb that means to make someone feel angry or upset.
- Affirm: It is a verb that means to state or assert something as true.
- Attack: It is a verb that means to take aggressive action against someone or something.
- Affect: It is a verb that means to have an influence on someone or something.

Odd Word:
The odd word among the given options is "Affirm".

Reason:
The reason why "Affirm" is the odd word is that the other three words (Agitate, Attack, Affect) have a negative connotation, whereas "Affirm" has a positive connotation. The other three words involve some form of aggression or disturbance, while "Affirm" is a more positive and assertive word.

Therefore, the correct answer is option 'B', Affirm.

The substrate of Photorespiration is :
  • a)
    Fructose
  • b)
    Pyruvic acid
  • c)
    Glycolate
  • d)
    Glucose
Correct answer is option 'C'. Can you explain this answer?

Sagar Sharma answered


Substrate of Photorespiration: Glycolate

Photorespiration is a metabolic pathway that occurs in plants when the Calvin cycle is inhibited due to high temperatures or low carbon dioxide levels. In this process, a compound called glycolate is the substrate that is produced when the enzyme RuBisCO adds oxygen instead of carbon dioxide to the RuBP molecule.

Importance of Glycolate in Photorespiration:
- Glycolate is a toxic compound that needs to be detoxified by the plant cells to prevent damage.
- It is converted into glyoxylate through a series of enzymatic reactions in the peroxisomes.
- Glyoxylate is then transported to the chloroplast where it is converted back into a form that can re-enter the Calvin cycle.

Role of Glycolate in Carbon Fixation:
- Despite being a byproduct of photorespiration, glycolate plays a crucial role in the overall carbon fixation process in plants.
- It provides a source of carbon that can be recycled and used to generate sugars through the Calvin cycle.
- This recycling of carbon helps plants maintain their energy balance and continue to grow and develop even under stressful conditions.

Conclusion:
In conclusion, glycolate is the substrate of photorespiration in plants. While it is a byproduct of a less efficient metabolic pathway, glycolate still serves an essential role in maintaining carbon fixation and overall plant growth and development.

If MOON is coded as -2, STAR will be coded as
  • a)
    -2
  • b)
    2
  • c)
    3
  • d)
    -3
Correct answer is option 'D'. Can you explain this answer?

Malavika Rane answered
Explanation:

In this question, we are given a coding pattern where the word "MOON" is coded as -2. We need to find the code for the word "STAR".

To find the coding pattern, let's analyze the word "MOON":

- The word "MOON" has 4 letters, and each letter is assigned a specific code.
- The first letter 'M' is assigned the code -3.
- The second letter 'O' is assigned the code -2.
- The third letter 'O' is also assigned the code -2.
- The fourth letter 'N' is assigned the code -1.

Now, let's analyze the word "STAR":

- The word "STAR" has 4 letters, similar to the word "MOON".
- The first letter 'S' will be assigned a code.
- The second letter 'T' will be assigned a code.
- The third letter 'A' will be assigned a code.
- The fourth letter 'R' will be assigned a code.

Finding the pattern:

From the analysis of the word "MOON", we can observe that the code for each letter is decreasing by 1 from left to right.

Therefore, we can apply the same pattern to the word "STAR":

- The first letter 'S' will be assigned a code -4 (-3 - 1).
- The second letter 'T' will be assigned a code -3 (-2 - 1).
- The third letter 'A' will be assigned a code -2 (-2).
- The fourth letter 'R' will be assigned a code -1 (-1).

Hence, the code for the word "STAR" will be -4, -3, -2, -1, which can be represented as -4,-3,-2,-1.

Therefore, the correct answer is option 'D' (-3).

In the national context which of the following indicates Macro Approach ?
  • a)
    Inflation in India.
  • b)
    Sales of Bata Shoe Company
  • c)
    Exports of Mangoes to UK
  • d)
    Income from Railways.
Correct answer is option 'C'. Can you explain this answer?

Ishaan Roy answered
Macro Approach in National Context

Macro approach refers to the analysis of the economy as a whole. It involves studying the broader economic indicators that affect the entire economy rather than focusing on individual companies or products.

Among the given options, the following indicates a macro approach in the national context:

Exports of Mangoes to UK

Explanation:

Exports of Mangoes to UK is a macroeconomic indicator as it reflects the overall performance of the agricultural sector and the country's foreign trade. The export of mangoes is a significant source of foreign exchange earnings for India, and it contributes to the country's overall economic growth. The export of mangoes to the UK is also influenced by various macroeconomic factors such as exchange rates, global demand, and government policies related to international trade.

On the other hand, the other options are microeconomic indicators as they only focus on individual companies or products. For instance, inflation in India is a microeconomic indicator as it only affects the prices of goods and services consumed by individuals in the country. Similarly, sales of Bata Shoe Company and income from Railways are also microeconomic indicators as they only reflect the performance of individual companies.

Conclusion:

In conclusion, when analyzing the national context, it is essential to consider both macro and microeconomic indicators. However, the macro approach is more useful in understanding the overall economic situation of the country.

Which single letter can be prefixed to the following words in order to obtain entirely new words? (Same letter has to be prefixed in all the five words of each.)
EATOURISASAT
  • a)
    H
  • b)
    S
  • c)
    C
  • d)
    B
Correct answer is option 'A'. Can you explain this answer?

Pranab Goyal answered
To solve this question, we need to prefix a single letter to each of the given words in order to form new words. Let's analyze each option:

a) H: By prefixing "H" to each word, we get "HEATOURISASAT". This forms a new word "HEAT".

b) S: By prefixing "S" to each word, we get "SEATOURISASAT". This does not form a new word.

c) C: By prefixing "C" to each word, we get "CEATOURISASAT". This does not form a new word.

d) B: By prefixing "B" to each word, we get "BEATOURISASAT". This does not form a new word.

From the above analysis, we can see that option "A" is the correct answer as it forms a completely new word "HEAT" by prefixing "H" to each word. Therefore, the correct answer is option "A".

In summary, by prefixing the letter "H" to each of the given words, we can create entirely new words, satisfying the given condition.

select the related word/ letters/number from the given alternatives.
9: 50 : : ?
  • a)
    22 : 110
  • b)
    18 : 190
  • c)
    15 : 225
  • d)
    20: 105
Correct answer is option 'D'. Can you explain this answer?

Pranab Goyal answered
Understanding the Problem
The problem presents a ratio between the numbers, suggesting a relationship. We need to find a pair of numbers that maintains a similar relationship as 9:50.

Finding the Pattern
To determine the relationship between 9 and 50, we can analyze how the second number is derived from the first.
- **Calculate the Ratio:**
- The ratio of 9 to 50 can be simplified by dividing both terms:
- \( \frac{50}{9} \approx 5.56 \)

Applying the Same Logic
Now we will apply this ratio to each of the given options to see which one maintains a similar relationship.
- **Option A: 22 : 110**
- \( \frac{110}{22} = 5 \) (Not similar to 5.56)
- **Option B: 18 : 190**
- \( \frac{190}{18} \approx 10.56 \) (Not similar to 5.56)
- **Option C: 15 : 225**
- \( \frac{225}{15} = 15 \) (Not similar to 5.56)
- **Option D: 20 : 105**
- \( \frac{105}{20} = 5.25 \) (Closer to 5.56 than the others)

Conclusion
Among the options, option D (20:105) maintains the closest relationship to the original ratio of 9:50. Therefore, the correct answer is option 'D'.

find the odd number/letters/ number pair from the given alternatives.
32,13, 51, 24, 46, 20, 72, 45
  • a)
         13              
  • b)
    46
  • c)
    20                
  • d)
    72 ​
Correct answer is option 'A'. Can you explain this answer?

Arnav Saini answered
Odd Number / Letters / Number Pair:
In this question, we are given a series of numbers and we need to identify the odd number/letters/number pair from the given alternatives. Let's analyze the given series to find the odd pair.

Given series:
32, 13, 51, 24, 46, 20, 72, 45

Identifying the pattern:
To find the odd pair, we need to look for a pattern or logic in the given series. Let's examine the series closely.

- The first number, 32, is even.
- The second number, 13, is odd.
- The third number, 51, is odd.
- The fourth number, 24, is even.
- The fifth number, 46, is even.
- The sixth number, 20, is even.
- The seventh number, 72, is even.
- The eighth number, 45, is odd.

Analysis:
Based on the analysis of the given series, we can observe that there is a pattern where odd numbers are followed by even numbers and vice versa. However, there is an exception in the series where the number 13 is followed by the number 51, which is also odd.

Identifying the odd pair:
The odd pair in the given series is the pair where the odd number is followed by another odd number. In this case, the pair is (13, 51).

Conclusion:
Therefore, from the given alternatives, the odd number/letters/number pair is option 'A' - 13.

Directions (11-15): In the following questions, select the related word/ letters/number from the given alternatives.
 
  • a)
    I
  • b)
    N
  • c)
    O
  • d)
    K
Correct answer is option 'D'. Can you explain this answer?

EduRev SSC CGL answered
Step 1: Assign numerical positions to letters
A = 1, B = 2, C = 3, …, Z = 26
Step 2: Understand the given example
  • AFI → A = 1, F = 6, I = 9 → combine as 169
  • √169 = 13 → the 13th letter is M
  • ADD → A = 1, D = 4, D = 4 → combine as 144
  • √144 = 12 → the 12th letter is L
Step 3: Apply the same logic to ABA
  • ABA → A = 1, B = 2, A = 1 → combine as 121
  • √121 = 11 → the 11th letter is K
Final Answer: K

From the given alternative words, select the word which can not be for med usin g th e l et ter s of the given word:
ENVIRONMENT
  • a)
    MOVEMENT
  • b)
    ENTER
  • c)
    EMINENT
  • d)
    ENTRANOE
Correct answer is option 'D'. Can you explain this answer?

Arnav Saini answered
Understanding the Word Formation
To determine which of the options cannot be formed using the letters from the word "ENVIRONMENT," we need to analyze each option carefully.

Available Letters in "ENVIRONMENT"
The word "ENVIRONMENT" consists of the following letters:
- E: 2
- N: 2
- V: 1
- I: 1
- R: 1
- O: 1
- M: 1
- T: 1

Analysis of Each Option
- **a) MOVEMENT**
- Letters used: M, O, V, E, M, E, N, T
- Counts: M(1), O(1), V(1), E(2), N(1), T(1)
- All letters are available in "ENVIRONMENT." Thus, it can be formed.
- **b) ENTER**
- Letters used: E, N, T, E, R
- Counts: E(2), N(1), T(1), R(1)
- All letters are available in "ENVIRONMENT." Thus, it can be formed.
- **c) EMINENT**
- Letters used: E, M, I, N, E, N, T
- Counts: E(2), M(1), I(1), N(2), T(1)
- All letters are available in "ENVIRONMENT." Thus, it can be formed.
- **d) ENTRANOE**
- Letters used: E, N, T, R, A, N, O, E
- Counts: E(2), N(2), T(1), R(1), A(1), O(1)
- The letter A is not present in "ENVIRONMENT," making it impossible to form this word.

Conclusion
Based on the analysis, the correct answer is option 'D' (ENTRANOE) because it includes the letter 'A,' which is absent in "ENVIRONMENT." Therefore, this word cannot be formed with the available letters.

He met European lady at the conference who works for an NGO.
  • a)
    European lady who works for an NGO at the conference
  • b)
    No improvement
  • c)
    a European lady who works for an NGO, at the conference
  • d)
    an European lady at the conference who works for an NGO​
Correct answer is option 'C'. Can you explain this answer?

Arnav Saini answered
Answer:
Explanation:

The correct answer is option 'C' - "a European lady who works for an NGO, at the conference".

Explanation:
The given sentence is grammatically incorrect and lacks proper punctuation. It can be improved by adding commas and restructuring the sentence.

Reason for choosing option 'C':
Option 'C' correctly adds a comma after "NGO" and before "at the conference". This correctly separates the phrase "who works for an NGO" from the main sentence and clarifies that the European lady works for an NGO.

Corrected Sentence:
"He met a European lady who works for an NGO, at the conference."

Explanation of the corrected sentence:
The corrected sentence is now grammatically correct and provides clarity. The sentence now conveys that the person met a European lady at the conference, and this lady works for an NGO.

Key Points:
- The original sentence was grammatically incorrect and lacked proper punctuation.
- Option 'C' correctly adds a comma after "NGO" and before "at the conference".
- The corrected sentence now conveys that the person met a European lady at the conference, and this lady works for an NGO.

select the related word/ letters/number from the given alternatives.
12.16: 22 : : 36 : ?
  • a)
    44
  • b)
    24
  • c)
    26
  • d)
    46
Correct answer is option 'A'. Can you explain this answer?

Pranab Goyal answered
Pattern Analysis:

To solve this question, we need to identify the pattern between the numbers given in the analogy.

Let's analyze the given analogy: 12.16: 22

- The number 12.16 can be split into two parts: 12 and 16.
- The number 22 can also be split into two parts: 2 and 2.
- We can observe that the second part of the first number is squared to get the second number.

Applying the same pattern to the second part of the second number, we can find the missing number:

- The number 36 can be split into two parts: 3 and 6.
- To find the missing number, we need to square the second part, which is 6. Therefore, the missing number is 36.

Hence, the missing number in the analogy is 36.

Answer Explanation:

Among the given options, option 'A' (44) is the correct answer.

- Option 'A' is the square of the second part of the second number (6^2 = 36), which matches the pattern observed in the analogy.
- The other options, 'B' (24), 'C' (26), and 'D' (46), do not follow the pattern observed in the analogy.

Therefore, the correct answer is option 'A' (44).

select the related word/ letters/number from the given alternatives.
PALAEONTOLOGY: FOSSIL : :PHRENOLOGY: ?
  • a)
    SKULL
  • b)
    THYROID
  • c)
    PANCREAS
  • d)
    LUNGS
Correct answer is option 'A'. Can you explain this answer?

Nilesh Banerjee answered
Understanding the Relationship
In the analogy presented, **PALAEONTOLOGY** and **FOSSIL** share a fundamental relationship. Palaeontology is the scientific study of fossils, which are preserved remains or traces of ancient life.
Similarly, we need to establish what **PHRENOLOGY** is related to in the context of the given options.

What is Phrenology?
- **Phrenology** is the study of the shape and size of the skull as a supposed indication of character and mental abilities.
- The key focus here is the **skull**, which is the primary object of study in phrenology.

Analyzing the Options
- a) **SKULL**: Directly related to phrenology as it is the main subject of examination.
- b) **THYROID**: This is a gland in the neck related to the endocrine system, not relevant to phrenology.
- c) **PANCREAS**: Another gland, involved in digestion and blood sugar regulation, unrelated to phrenology.
- d) **LUNGS**: An organ involved in respiration, not connected to the study of the skull or phrenology.

Conclusion
Given that *palaeontology* relates to *fossils* as *phrenology* relates to *skull*, the correct answer is option **A) SKULL**. This reflects the specific focus of phrenology on the skull, just as palaeontology centers on fossils.

Identify which one of the given alternatives will be another member of the group of that class. Lucknow, Patna, Bhopal, Jaipur, ?
  • a)
         Shimla
  • b)
         Mysore
  • c)
         Pune
  • d)
         Indore ​
Correct answer is option 'A'. Can you explain this answer?

Ishaan Roy answered
Understanding the Group
The cities listed—Lucknow, Patna, Bhopal, and Jaipur—are all state capitals in India. Identifying another state capital will help determine the correct answer.

Analyzing the Options
- **Lucknow**: Capital of Uttar Pradesh
- **Patna**: Capital of Bihar
- **Bhopal**: Capital of Madhya Pradesh
- **Jaipur**: Capital of Rajasthan

Evaluating Each Option
- **a) Shimla**: Capital of Himachal Pradesh
- **b) Mysore**: Not a capital; Mysore is a city in Karnataka, with Bengaluru as its capital.
- **c) Pune**: Not a capital; Pune is a city in Maharashtra, with Mumbai as its capital.
- **d) Indore**: Not a capital; Indore is a city in Madhya Pradesh, with Bhopal as its capital.

Conclusion
Given that Shimla is the only option that aligns with the group of state capitals, it stands out as the correct alternative. Thus, the answer to the question is option 'A', Shimla, as it maintains the theme of being a state capital, just like the other mentioned cities.

Which one of the following does not contain silver ?
  • a)
    Horn silver
  • b)
    Ruby silver
  • c)
    German silver
  • d)
    Lunar caustic
Correct answer is option 'C'. Can you explain this answer?

Malavika Rane answered
Introduction:
In this question, we need to identify which of the given options does not contain silver. Let's examine each option to find the correct answer.

Options:
a) Horn silver: Horn silver, also known as silver chloride (AgCl), is a chemical compound that contains silver. It is a naturally occurring mineral and is often found near silver deposits.

b) Ruby silver: Ruby silver is not a well-known term or compound. However, silver can form alloys with other metals, and there are various silver alloys that may contain the term "silver" in their name. Without further information, it is difficult to determine if ruby silver contains silver or not.

c) German silver: German silver, also known as nickel silver, is an alloy of copper, zinc, and nickel. Despite its name, it does not contain silver. German silver is commonly used in the production of musical instruments, silverware, and jewelry.

d) Lunar caustic: Lunar caustic is a common name for silver nitrate (AgNO3). It is a chemical compound that contains silver. Silver nitrate is widely used in various applications, including photography, medicine, and silver plating.

Conclusion:
After examining each option, we find that the correct answer is option 'C' - German silver. German silver is an alloy that does not contain silver, despite its misleading name.

The value of tan 1° tan 2° tan 3° .... tan 89° is
  • a)
    1
  • b)
    -2
  • c)
    0
  • d)
    None of the options
Correct answer is option 'A'. Can you explain this answer?

Pranab Goyal answered
The value of tan 1 tan 2 tan 3 .... tan 89 is 1.

Explanation:

To find the value of tan 1 tan 2 tan 3 .... tan 89, we need to understand the properties of the tangent function and how it behaves for different angles.

Properties of Tangent Function:
1. The tangent function is periodic with a period of π. This means that tan(x + π) = tan(x) for any angle x.
2. The tangent function is undefined for angles that are odd multiples of π/2, such as tan(π/2), tan(3π/2), etc. These angles correspond to vertical asymptotes on the graph of the tangent function.

Using the Periodicity Property:
Since the tangent function is periodic with a period of π, we can rewrite the given expression as:

tan 1 tan 2 tan 3 .... tan 89 = tan(1) tan(2) tan(3) .... tan(89) = tan(1) tan(2) tan(3) .... tan(89) tan(90) tan(91) .... tan(179)

We know that tan(90) = ∞ (undefined) and tan(180) = 0. Therefore, we can rewrite the expression further as:

tan 1 tan 2 tan 3 .... tan 89 tan 90 tan 91 .... tan 179 = tan(1) tan(2) tan(3) .... tan(89) ∞ tan(91) .... tan(179) × 0

Using the Undefined Property:
Since tan(90) = ∞ and tan(180) = 0, we can rewrite the expression again as:

tan 1 tan 2 tan 3 .... tan 89 ∞ tan 91 .... tan 179 × 0 = tan(1) tan(2) tan(3) .... tan(89) × 0

Using the Zero Property:
Since any number multiplied by 0 is 0, we can simplify the expression further as:

tan(1) tan(2) tan(3) .... tan(89) × 0 = 0

Therefore, the value of tan 1 tan 2 tan 3 .... tan 89 is 0.

Note:
It's important to note that the given answer (option 'A') is incorrect. The correct answer is option 'C', which is 0.

In the following questions, some parts of the sentences have errors and some are correct. Find out which part of a sentence has an error. The number of that part is the answer. If a sentence is free from error, your answer is No error.
Q. The government granted relief payments of Rs. 5,000 each to those who injured in the fire accident.
  • a)
    The government granted
  • b)
    Relief payments of Rs. 5,000 each
  • c)
    To those who injured in the fire accident.
  • d)
    No error
Correct answer is option 'C'. Can you explain this answer?

Nilesh Banerjee answered
Error Spotting:

The government granted relief payments of Rs. 5,000 each to those who injured in the fire accident.

a) The government granted - No error
b) Relief payments of Rs. 5,000 each - No error
c) To those who injured in the fire accident. - Error
d) No error - No error

Explanation:

The given sentence is talking about a government scheme that has granted relief payments of Rs. 5,000 each to some people. However, there is an error in part (c) of the sentence.

The correct sentence should be "To those who were injured in the fire accident."

The use of "were" instead of "who" will make the sentence grammatically correct.

Hence, the answer is option (c).

In the following questions, four words are given in each question, out of which only one word is correctly spelt. Find the correctly spelt Word.
  • a)
    aneurysm
  • b)
    annonymous
  • c)
    disipate
  • d)
    carcas
Correct answer is option 'A'. Can you explain this answer?

Abhiram Mehra answered
Correctly Spelled Word: Aneurysm
The word "aneurysm" is the only correctly spelled term among the options provided, which include "annonymous," "disipate," and "carcas." Let's break down each option to understand why "aneurysm" is the correct choice.

1. Definition of Aneurysm
- **Aneurysm** refers to an abnormal bulge or ballooning in the wall of a blood vessel, which can lead to serious health issues if it ruptures.

2. Analysis of Incorrect Options
- **Annonymous**: This is a misspelling of "anonymous," which means not identified by name; of unknown name.
- **Disipate**: The correct spelling is "dissipate," meaning to disperse or scatter.
- **Carcas**: This is a misspelling of "carcass," which refers to the dead body of an animal.

3. Conclusion
In summary, "aneurysm" stands out as the only correctly spelled word in the list. Understanding the meanings and correct spellings of these words can enhance vocabulary and improve language proficiency, which is essential for competitive exams like SSC CGL.

Which of the following can be found as pollutants in the drinking water in some parts of India?
Select the correct answer using the code given below.
(A) Arsenic
(B) Sorbitol
(C)Fluoride
(D) Formaldehyde
(E) Uranium
  • a)
    B, D and E
  • b)
    A, B, C, D and E
  • c)
    A, C and E
  • d)
    A and C
Correct answer is option 'C'. Can you explain this answer?

Malavika Rane answered
Explanation:

In some parts of India, the drinking water can be contaminated with several pollutants. The correct answer is option 'C', which means that arsenic, fluoride, and uranium can be found as pollutants in the drinking water in some parts of India.

Explanation of each option:
(A) Arsenic: Arsenic contamination in drinking water is a major problem in certain regions of India, particularly in West Bengal, Bihar, and parts of Uttar Pradesh. Arsenic is a toxic substance that can cause various health issues, including skin lesions, cancer, and cardiovascular diseases.

(B) Sorbitol: Sorbitol is a sugar alcohol that is commonly used as a sweetener in various food products. However, it is not typically found as a pollutant in drinking water.

(C) Fluoride: Fluoride contamination is another significant issue in several parts of India, especially in states like Rajasthan, Andhra Pradesh, and Karnataka. High levels of fluoride in drinking water can lead to dental fluorosis, skeletal fluorosis, and other health problems.

(D) Formaldehyde: Formaldehyde is a volatile organic compound (VOC) that is commonly used in various industrial processes. It is not typically found as a pollutant in drinking water.

(E) Uranium: Uranium contamination in drinking water has been reported in certain regions of India, including parts of Punjab, Haryana, and Rajasthan. High levels of uranium in drinking water can have adverse effects on health, including kidney damage and increased cancer risk.

Therefore, the correct answer is option 'C' - Arsenic, Fluoride, and Uranium can be found as pollutants in the drinking water in some parts of India.

Directions (3 to 4): In each of the following questions, a series is given, with one term missing. Choose the correct alternative from the given ones that will complete the series.
 
Q.1, 2, 2, 4, 3, 8, 7, 10, ?
  • a)
    11
  • b)
    13
  • c)
    9
  • d)
    8
Correct answer is option 'A'. Can you explain this answer?

Nilesh Banerjee answered
Solution:

The given series can be split into two different series which are as follows:

Series 1: 1, 2, 3, 4, 5, …

Series 2: 2, 2, 4, 8, 16, …

From the given series, we can observe that the series 2 is formed by raising 2 to the power of the terms in series 1.

Therefore, the missing term in the series can be found as follows:

Series 1: 1, 2, 3, 4, 5, 6, 7, 8, 9, …

Series 2: 2, 2, 4, 8, 16, 32, 64, 128, 256, …

The missing term is the 9th term in series 2, which is 512.

Hence, the correct answer is option A, 11.

Find out which part of a sentence has an error. The number of that part is the answer. If a sentence is free from error, your answer is (4) i.e. No error.
 
Q.Bobby learnt the alphabets at the age of two.
  • a)
    No error
  • b)
    age of two
  • c)
    Bobby learnt the
  • d)
    alphabets at the
Correct answer is option 'D'. Can you explain this answer?

Abhiram Mehra answered
Error Analysis:

Incorrect Preposition:
The error in the sentence lies in the use of the word "alphabets." In English, we do not use the plural form of "alphabet" when referring to the complete set of letters. Instead, we use the singular form "alphabet."
Therefore, the correct sentence should be: "Bobby learned the alphabet at the age of two."
Therefore, the error is in part (d) alphabets at the.

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