Problems on Trains - Aptitude Questions and Answers part -2

Problems on Trains - Aptitude Questions and Answers part -2 

This is aptitude questions and answers section on "Problems on Trains" with explanation for various interview, competitive examinations and entrance tests. Candidates can practice the Problems on Trains Quiz, Problems on Trains MCQ, Problems on Trains Aptitude Questions, Problems on Trains Multiple Choice Questions and Answers from the below section.

Problems on Trains Questions - Problems on Trains Quiz Details

Test Name: 

Problems on Trains

Exam Type: 

Multiple Choice Questions

Category :

Aptitude Quiz

Number of Questions : 77

Problems on Trains Formulae:

1. km/hr to m/s conversion

a km/hr = (a x5/18) m/s

2. m/s to km/hr conversion 

a m/s = (a x18/5) km/hr


6. A train passes a station platform in 36 seconds and a man standing on the platform in 20 seconds. If the speed of the train is 54 km/hr, what is the length of the platform?

A. 120 m

B. 240 m

C. 300 m

D. None of these

Answer & Explanation

Answer: Option B

Explanation:

Speed = (54 * 5/18) m/sec 

= 15 m/sec. 

Length of the train = (15 x 20)m 

= 300 m. Let the length of the platform be x meters. 

Then, (x + 300)/36 

= 15 ==> x + 300 

= 540 ==> x = 240 m.


7. A 300 meter long train crosses a platform in 39 seconds while it crosses a signal pole in 18 seconds. What is the length of the platform?

A. 150 m

B. 200 m

C. 350 m

D. 400 m

Answer & Explanation

Answer: Option C

Explanation:

Speed = [300 / 18] m/sec 

= 50/3 m/sec.

Let the length of the 

platform be x meters.

Then, x + 300 / 39 = 50/3 

3(x + 300) = 1950 ¨ x = 350m.

8. A train passes a station platform in 36 seconds and a man standing on the platform in 20 seconds. If the speed of the train is 54 km/hr, what is the length of the platform?

A. 180 m

B. 200 m

C. 240 m

D. 320 m

Answer & Explanation

Answer: Option C

Explanation:

Speed = [54 * 5/18] m/sec 

= 15 m/sec.

Length of the train 

= (15 * 20) m = 300 m. 

Let the length of the platform 

be x meters. 

Then, x + 300 / 36 = 15

x + 300 = 540

x = 240 m


9. The length of a train and that of a platform are equal. If with a speed of 90 k/hr, the train crosses the platform in one minute, then the length of the train (in meters) is:

A. 850

B. 525

C. 550

D. 750

Answer & Explanation

Answer: Option D

Explanation:

Speed = [90 * 5/18] m/sec 

= 25 m/sec; Time 

= 1 min. = 60 sec.

Let the length of the train and 

that of the platform be x meters.

Then, 2x/60

 = 25 ¨ x = 25 * 60 / 2 = 750 


10. A train 110 meters long is running with a speed of 60 kmph. In what time will it pass a man who is running at 6 kmph in the direction opposite to that in which the train is going?

A. 4

B. 6

C. 5

D. 9

Answer & Explanation

Answer: Option B

Explanation:

Speed of train relative 

to man = (60 + 6) km/hr 

= 66 km/hr

[66 * 5/18] m/sec 

= [55/3] m/sec. 

Time taken to pass

 the man = [110 * 3/55] sec = 6 sec


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