Length of train is 170 meters and speed of train is 63 km/hour. This train can p

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Question
Length of train is 170 meters and speed of train is 63 km/hour. This train can pass a bridge in 30 seconds, then find the length of the bridge.
Options
A. 355 mts
B. 325 mts
C. 365 mts
D. 312 mts

Correct Answer

355 mts

Explanation

Given speed = 63 km/hr = $63 � \frac{5}{18} = \frac{35}{2}$ m/s

Let the length of the bridge = x mts

Given time taken to cover the distance of (170 + x)mts is 30 sec.

We know speed = $\frac{d i s \tan c e}{t i m e}$ m/s

$? \frac{35}{2} = \frac{170 + x}{30}$

--> x = 355 mts.

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Problems on Trains

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1. A jogger is running at 9 kmph alongside a railway track is 240 meters ahead of the engine of a 120 meters long train running at 45 kmph in the same direction. In how much time will the train pass the jogger ?
Options
A. 48 sec
B. 36 sec
C. 18 sec
D. 72 sec

2. A train is traveling at 48 kmph . It crosses another train having half of its length , traveling in opposite direction at 42 kmph, in 12 seconds. It also passes a railway platform in 45 seconds. What is the length of the platform ?
Options
A. 500
B. 400
C. 360
D. 480

4. The difference between the time taken by two trains to travel a distance of 350 km is 2 hours 20 minutes. If the difference between their speeds is 5 km/hr, what is the speed of faster train ?
Options
A. 36 kmph
B. 30 kmph
C. 34 kmph
D. 40 kmph

5. A goods train runs at the speed of 72 kmph and crosses a 250 m long platform in 26 seconds. What is the length of the goods train?
Options
A. 230 m
B. 240 m
C. 260 m
D. 270 m

6. A train sets off at 3 p.m. at the speed of 70 kmph. Another train starts at 4:30 p.m. in the same direction at the rate of 85 kmph. At what time the trains will meet ?
Options
A. 10:10 pm
B. 9:50 pm
C. 11:30 pm
D. 10:30 pm

7. A train running at the speed of 40 km/hr crosses a signal pole in 9 seconds. Find the length of the train ?
Options
A. 90 mts
B. 150 mts
C. 120 mts
D. 100 mts

8. Two trains are running at 60 km/hr and 20 km/hr respectively in the same direction. Fast train completely passes a man sitting in the slower train in 6 seconds. What is the length of the fast train ? A. 6623 mts B. 6632 mts C.6345 mts D. 6354 mts
Options
A. Option A
B. Option B
C. Option C
D. Option D

9. Train K crosses a stationary Train L in 50 seconds and a pole in 20 seconds with the same speed. The length of the Train K is 240 meters. What is the length of stationary Train L ?
Options
A. 60 mts
B. 120 mts
C. 240 mts
D. 360 mts

10. Two trains running in opposite directions cross a man standing on the platform in 27 seconds and 17 seconds respectively and they cross each other in 23 seconds. The ratio of their speeds is ?
Options
A. 1 : 2
B. 3 : 1
C. 4 : 7
D. 3 : 2

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