Exercise :: Problems on Trains  General Questions
11.  A 270 metres long train running at the speed of 120 kmph crosses another train running in opposite direction at the speed of 80 kmph in 9 seconds. What is the length of the other train? 

Answer: Option A Explanation: Relative speed = (120 + 80) km/hr
Let the length of the other train be x metres.
x + 270 = 500 x = 230. 
12.  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? 

Answer: Option D Explanation:
Time = 26 sec. Let the length of the train be x metres.
x + 250 = 520 x = 270. 
13.  Two trains, each 100 m long, moving in opposite directions, cross each other in 8 seconds. If one is moving twice as fast the other, then the speed of the faster train is: 

Answer: Option C Explanation: Let the speed of the slower train be x m/sec. Then, speed of the faster train = 2x m/sec. Relative speed = (x + 2x) m/sec = 3x m/sec.
24x = 200
= 60 km/hr. 
14.  Two trains 140 m and 160 m long run at the speed of 60 km/hr and 40 km/hr respectively in opposite directions on parallel tracks. The time (in seconds) which they take to cross each other, is: 

Answer: Option D Explanation:
Distance covered in crossing each other = (140 + 160) m = 300 m.

15.  A train 110 metres 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? 

Answer: Option B Explanation: Speed of train relative to man = (60 + 6) km/hr = 66 km/hr.
