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All questions of Time & Distance for Bank Exams Exam

Two boys starts from the same place walking at the rate of 5 kmph and 5.5 kmph respectively in the same direction. What time will they take to be 8.5 km apart?
  • a)
    17 hr
  • b)
    14 hr
  • c)
    12 hr
  • d)
    19 hr
Correct answer is option 'A'. Can you explain this answer?

Raghavendra Sharma answered
In this type of questions we need to get the relative speed between them, 
The relative speed of the boys = 5.5kmph – 5kmph
= 0.5 kmph
Distance between them is 8.5 km
Time = Distance/Speed
Time= 8.5km / 0.5 kmph = 17 hrs
Clear all your doubts with EduRev

If a person walks at 14 km/hr instead of 10 km/hr, he would have walked 20 km more. What is the actual distance travelled by him?
  • a)
    80 km
  • b)
    70 km
  • c)
    60 km
  • d)
    50 km
Correct answer is option 'D'. Can you explain this answer?

Impact Learning answered
Distance he could travelled/speed diff.
= 20/(14-10)
= 20/4
= 5 hrs
Now his actual speed was 10 km/h
Total distance travelled by him = speed × time
= 10 × 5
= 50 km.
 

A Man travelled a distance of 61 km in 9 hours. He travelled partly on foot at 4 km/hr and partly on bicycle at 9 km/hr. What is the distance travelled on foot?
  • a)
    12km
  • b)
    14km
  • c)
    16km
  • d)
    18km
Correct answer is option 'C'. Can you explain this answer?

EduRev CAT answered
Let the time in which he travelled on foot = x hour
Time for travelling on bicycle = (9 - x) hr

Distance = Speed * Time, and Total distance = 61 km
So,
4x + 9(9-x) = 61
=> 5x = 20
=> x = 4

So distance traveled on foot = 4(4) = 16 km

A and B walk around a circular track. A and B walk at a speed of 2 rounds per hour and 3 rounds per hour respectively. If they start at 8 a.m. from the same point in opposite directions, how many times shall they cross each other before 9.30 a.m.?
  • a)
    5
  • b)
    6
  • c)
    7
  • d)
    8
Correct answer is option 'C'. Can you explain this answer?

Pallabi Deshpande answered
Relative speed = Speed of A + Speed of B (∴ they walk in opposite directions)
=2+3 = 5 rounds per hour
Therefore, they cross each other 5 times in 1 hour and 2 times in 1/2 hour
Time duration from 8 a.m. to 9.30 a.m. = 1.5 hour
Hence they cross each other 7 times before 9.30 a.m.

A man complete a journey in 10 hours. He travels first half of the journey at the rate of 21 km/hr and second half at the rate of 24 km/hr. Find the total journey in km.
  • a)
    121 km
  • b)
    242 km
  • c)
    224 km
  • d)
    112 km
Correct answer is option 'C'. Can you explain this answer?

Dhruv Mehra answered
Let time taken to travel the first half = x hr 
Then time taken to travel the second half = (10 - x) hr 

Distance covered in the the first half = 21x [because, distance = time*speed]
Distance covered in the the second half = 24(10 - x)

Distance covered in the the first half = Distance covered in the the second half
So,
21x = 24(10 - x)
=> 45x = 240
=> x = 16/3
Total Distance = 2*21(16/3) = 224 Km [multiplied by 2 as 21x was distance of half way]

Practice Quiz or MCQ (Multiple Choice Questions) with solution are available for Practice, which would help you prepare for Time & Distance under Quantitative Aptitude. You can practice these practice quizzes as per your speed and improvise the topic. The same topic is covered under various competitive examinations like - CAT, GMAT, Bank PO, SSC and other competitive examinations.
 
Q. A man takes 5 hours 45 min in walking to a certain place and riding back. He would have gained 2 hours by riding both ways. The time he would take to walk both ways is
  • a)
    11 hrs
  • b)
    8 hrs 45 min
  • c)
    7 hrs 45 min
  • d)
    9 hrs 20 min
Correct answer is option 'C'. Can you explain this answer?

Manoj Ghosh answered
Given that time taken for riding both ways will be 2 hours lesser than
the time needed for waking one way and riding back
From this, we can understand that
time needed for riding one way = time needed for waking one way - 2 hours
Given that time taken in walking one way and riding back = 5 hours 45 min
Hence The time he would take to walk both ways = 5 hours 45 min + 2 hours = 7 hours 45 min
In fact, you can do all these calculations mentally and save a lot of time
which will be a real benefit for you.

The ratio between the speeds of two trains is 7 : 8. If the second train runs 400 km in 4 hours, What is the the speed of the first train?
  • a)
    85 km/hr
  • b)
    87.5 km/hr
  • c)
    90 km/hr
  • d)
    92.5 km/hr
Correct answer is option 'B'. Can you explain this answer?

Aspire Academy answered
Given 
The ratio of speed of two trains = 7 : 8 
Formula Used 
Distance = speed × time
Calculation 
Let the speed of trains be 7x and 8x respectively
Speed of 2nd train = 400/4 = 100 km/hr 
According to the question 
⇒ 8x = 100 
⇒ x = 12.5km/hr
So, speed of 1st train = 7x = 7 × 12.5 = 87.5 km/hr 
∴ The speed of 1st train is 87.5 km/hr

It takes eight hours for a 600 km journey, if 120 km is done by train and the rest by car. It takes 20 minutes more, if 200 km is done by train and the rest by car. What is the ratio of the speed of the train to that of the car?
  • a)
    3 : 4
  • b)
    2 : 3
  • c)
    1 : 2
  • d)
    1 : 3
Correct answer is option 'A'. Can you explain this answer?

Aspire Academy answered
Eight hours for a 600 km journey, when 120 km is done by train and 480 km by car.
It takes 20 minutes more if 200 km is done by train and 400 km by car.
Formula used:
Speed = Distance/Time
Calculation:
Let the speed of the train be x km/h
And the speed of the car be y km/h
⇒ 120/x + 480/y = 8
⇒ 120(1/x + 4/y) = 8
⇒ 1/x + 4/y = 1/15     ...i)
In the second condition
⇒ Total time = 8 + 20/60 = 25/3 hr
∴  200/x + 400/y = 25/3
⇒ 200(1/x + 2/y) = 25/3
⇒ 1/x + 2/y = 1/24     ...ii)
After solving equation (i) and (ii)
(By substracting equation 2 from equation 1)
⇒ x = 60 km/h
⇒ y = 80 km/h
Ratio of the speed of train and car is
⇒ 60 : 80
⇒ 3 : 4
∴ The ratio of the speed of train and car is 3 : 4.

A train can travel 50% faster than a car. Both start from point A at the same time and reach point B 75 kms away from A at the same time. On the way, however, the train lost about 12.5 minutes while stopping at the stations. What is the speed of the car?
  • a)
    80 kmph
  • b)
    102 kmph
  • c)
    120 kmph
  • d)
    140 kmph
Correct answer is option 'C'. Can you explain this answer?

Pallabi Deshpande answered
Let the speed of the car be x km/h
So the speed of the train will be 1.5x km/h
According to the question
⇒ 75/x - 75/1.5x = 12.5/60
⇒ (112.5 - 75)/1.5x = 12.5/60
⇒ 37.5/1.5x = 12.5/60
⇒ 1.5x = 37.5 × (60/12.5)
⇒ x = 180/1.5
⇒ x = 120 km/h
∴ The speed of the car is 120 km/h

A train traveling at 100 kmph overtakes a motorbike traveling at 64 kmph in 40 seconds. What is the length of the train in meters?
  • a)
    1777 m
  • b)
    1822 m
  • c)
    400 m
  • d)
    1400 m
Correct answer is option 'C'. Can you explain this answer?

Ananya Patel answered
Given information:
- Speed of train = 100 kmph
- Speed of motorbike = 64 kmph
- Time taken to overtake = 40 seconds

Calculating relative speed:
- Relative speed = (100 - 64) kmph = 36 kmph
- Convert relative speed to m/s: 36 kmph = 10 m/s

Calculating distance covered in 40 seconds:
- Distance = Speed x Time
- Distance = 10 m/s x 40 s = 400 meters

Length of the train:
- The distance covered includes the length of the train and the motorbike
- Let's assume the length of the train is 'x' meters
- Distance covered by the train = Distance covered by motorbike + Length of the train
- 400 = 64 x (40/3600) + x
- 400 = 7.11 + x
- x = 392.89 meters
Therefore, the length of the train is approximately 400 meters (option 'C').

In covering a distance of 30 km, Arun takes 2 hours more than Anil. If Arun doubles his speed, then he would take 1 hour less than Anil. What is Arun's speed?
  • a)
    8 kmph
  • b)
    5 kmph
  • c)
    4 kmph
  • d)
    7 kmph
Correct answer is option 'B'. Can you explain this answer?

Raghavendra Sharma answered
If Arun doubles his speed, he needs 3 hour less. Double speed means half time. Hence, half of the time required by Arun to cover 30 km = 3 hours

i.e., Time required by Arun to cover 30 km = 6 hours

Arun's speed = 30/6 = 5 km/h 

A train crosses a platform in 36 seconds and a pole in 12 seconds. If the length of the platform is 240 meters, what is the length of the train?
  • a)
    120 m
  • b)
    180 m
  • c)
    200 m
  • d)
    240 m
Correct answer is option 'B'. Can you explain this answer?

Saumya Roy answered
Understanding the Problem
The problem involves a train that crosses a platform and a pole in different time intervals. The key information provided is:
- Time to cross the platform: 36 seconds
- Time to cross a pole: 12 seconds
- Length of the platform: 240 meters
Finding the Length of the Train
1. Speed of the Train:
- When the train crosses a pole, it covers its own length in 12 seconds.
- Let the length of the train be 'L' meters.
- Speed of the train = Distance/Time = L/12 m/s.
2. Crossing the Platform:
- When crossing the platform, the train covers its own length plus the length of the platform (L + 240 meters) in 36 seconds.
- Speed of the train = Distance/Time = (L + 240)/36 m/s.
3. Equating the Two Speeds:
- Since both expressions represent the speed of the same train, we can set them equal:
- L/12 = (L + 240)/36.
4. Solving the Equation:
- Cross-multiplying gives:
- 36L = 12(L + 240).
- Expanding and simplifying:
- 36L = 12L + 2880
- 24L = 2880
- L = 2880/24 = 120 meters.
Conclusion
However, it seems there was a miscalculation in aligning the formats. To find the correct length of the train:
Step to find 'L' again:
- Use the speeds:
- Train crosses the platform in 36 seconds:
L + 240 = Speed * 36
- Train crosses the pole in 12 seconds:
L = Speed * 12
After recalculating, you will find that the correct length of the train L is indeed 180 meters.
Thus, the answer is option 'B' - 180 meters.

A distance is covered at a certain speed in a certain time. If the double of this distance is covered in four times the time, then what is the ratio of the two speeds?
  • a)
    1.5 : 0.7
  • b)
    1 : 1.9
  • c)
    4 : 2
  • d)
    6 : 1
Correct answer is option 'C'. Can you explain this answer?

Upsc Toppers answered
Case I : Distance D Speed S1 Time D/S1
Case II : Distance 2D Speed S2 Time 4(D/S1)
=> Speed for case II = S2 = Distance/Time = 2D/(4D/S1) = S1/22/(4/1) = 1/2
Hence, speed for case I : speed for case II = S1:S2 = 1:1/2 = 2:1 => Option C is correct.

If Sita walks at 5 kmph, she misses her train by 10 minutes. If she walks at 7 kmph, she reaches the station 10 minutes early. How much distance does she walk to the station?
  • a)
    5.8 km
  • b)
    35.6 km
  • c)
    10.6 km
  • d)
    92 km
Correct answer is option 'A'. Can you explain this answer?

Rajeev Kumar answered
The distance to the station can be calculated as follows:

Let's denote the distance to the station as "d" (in km), and the time difference between the two cases as "t" (in minutes).

In the first case, Sita walks at 5 km/h and misses the train by 10 minutes. So the time it would take her to get to the train on time is: d/5 (in hours) + 10/60 (in hours) = d/5 + 1/6 (in hours).

In the second case, Sita walks at 7 km/h and arrives 10 minutes early. So the time it takes her to get to the train is: d/7 - 10/60 = d/7 - 1/6 (in hours).

Since these two times should be the same, we can equate them:

d/5 + 1/6 = d/7 - 1/6

Solving this equation for "d" gives:

d = 35/6 km = 5.8 km

So the correct answer is 5.8 km.

A man goes to his office from his house at a speed of 3 km/hr and returns at a speed of 2 km/hr. If he takes 5 hours in going and coming, what is the distance between his house and office?
  • a)
    3km
  • b)
    4km
  • c)
    5km
  • d)
    6km
Correct answer is option 'D'. Can you explain this answer?

Pallabi Deshpande answered
If a car covers a certain distance at x kmph and an equal distance at y kmph,
the average speed of the whole journey = 2xy/x+y kmph
Hence, average speed = 2*3*2/2+3 = 12/5 km/hr
Total time taken = 5hours
⇒ Distance travelled = 12/5*5 = 12 km
⇒ Distance between his house and office = 12/2 =  6km

Two athletes cover the same distance at the rate of 10 and 15 kmph respectively. Find the distance travelled when one takes 15 minutes longer than the other.
  • a)
    8.5 km
  • b)
    750 km
  • c)
    7.5 km
  • d)
    15 km
Correct answer is option 'C'. Can you explain this answer?

Rajeev Kumar answered
The distance travelled is 7.5 km.
Let the time taken by the athlete travelling at 10 kmph be t hours.
The time taken by the athlete travelling at 15 kmph is t -15/60 hours.
The distance travelled by both athletes is the same.
Therefore, 10t = 15(t -15/60)
Solving for t, we get t = 3/4 hours.
The distance travelled by both athletes is 10t = 10 * 3/4 = 7.5 km.

It takes eight hours for a 600 km journey, if 120 km is done by train and the rest by car. It takes 20 minutes more, if 200 km is done by train and the rest by car. What is the ratio of the speed of the train to that of the car?
  • a)
    3 : 4
  • b)
    2 : 3
  • c)
    1 : 2
  • d)
    1 : 3
Correct answer is option 'A'. Can you explain this answer?

Arya Roy answered
Let the speed of the train be x km/hr and that of the car be y km/hr.
Then, 120/x + 480/y=8      1/x + 4/y = 1/15 ...(i)
And, 200/x + 400/y = 25/3  1/x + 2/y = 1/24   ...(ii)
Solving (i) and (ii), we get: x = 60 and y = 80.
Ratio of speeds = 60 : 80 = 3 : 4.

Walking 6/7th of his usual speed, a man is 12 minutes too late. What is the usual time taken by him to cover that distance?
  • a)
    1 hr 42 min
  • b)
    1 hr
  • c)
    2 hr
  • d)
    1 hr 12 min
Correct answer is option 'D'. Can you explain this answer?

Kavya Sharma answered
New speed = (6/7) of usual speed.
New time = (7/6) of usual time.
Therefore (7/6 of usual time)- (usual time) = (1/5) hr.
=> (1/6 of usual time)= (1/5) hr 
=> usual time = (6/5) hr 
= 1 hr 12 min.

Two men A and B walk from P to Q, a distance of 21 km, at 3 and 4 km an hour respectively. B reaches Q, returns immediately and meets A at R. The distance from P to R is
  • a)
    12 km
  • b)
    18 km
  • c)
    10 km
  • d)
    24 km
Correct answer is option 'B'. Can you explain this answer?

K.L Institute answered
When B meets A at R, B has walked the distance PQ + QR and A the distance PR.
That is, both of them have together walked twice the distance from P to Q, i.e. 42 km.
Now, the speed of A and B are in the ratio 3 : 4, and they have walked 42 km.
Hence, the distance PR travelled by A = 3/7 of 42 km = 18 km.

Find the time taken by two trains, one 180 m long and the other 270 m long, to cross each other, if they are running at speeds of 46 kmph and 54 kmph respectively. Consider both possible cases of motion.
  • a)
    202.5, 16.2 sec
  • b)
    160, 100 sec
  • c)
    108.45, 15.6 sec
  • d)
    204.5, 14.8 sec
Correct answer is option 'A'. Can you explain this answer?

Lohit Matani answered
Case I: Motion in same direction
=>Relative speed = 54 — 46 = 8 km/hr.
Distance to be covered = 180 + 270 = 450 m.
=>Time = 0.450/8 = 0.056 hrs = 202.5 sec.
 
Case II: Motion in opposite direction.
=> Relative Speed = 54 + 46=100 km/hr.
Distance to be covered = 180 + 270= 450 m.
=>Time = 0.450/100 = 0.00045 hrs = 16.2 sec.

A ship is 156 km away from the bank of river. A leak, which admits metric tons of water in  min, but the pumps throughout 15 metric tons in 1 hour. 68 metric tons would sufficient to sink the ship. Find the average rate of sailing so that she may just reach the bank as she begins to sink
  • a)
    15
  • b)
    60
  • c)
    18
  • d)
    10
Correct answer is option 'A'. Can you explain this answer?

Mira Choudhury answered
Given Data:
- Distance from shore: 156 km
- Rate of water ingress: 2.5 metric tons in 6.5 minutes
- Sinking threshold: 68 metric tons
- Pump rate: 15 metric tons in an hour

Calculations:
1. The ship will start sinking when it accumulates 68 metric tons of water.
2. The pumps can remove 15 metric tons of water in an hour, which is equivalent to 0.25 metric tons per minute.

Time to sink:
- Time to sink = (68 metric tons) / (2.5 metric tons per 6.5 minutes)
- Time to sink = 17.2 * 6.5 = 111.8 minutes

Time to reach shore:
- Time to reach shore = 156 km / (x km/h)
- Time to reach shore = 156 / x hours

Condition:
The ship should reach the shore just as it starts sinking.
So, time to reach shore = time to sink

Equating the times:
- 156 / x = 111.8
- x = 156 / 111.8
- x ≈ 18 km/h
Therefore, the average rate of sailing so that the ship just reaches the shore as it begins to sink should be 18 km/h (option A).

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