Problems on Trains Multiple Choice Questions
Problems on Trains
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:
A.  10.4 

B.  10.8 

C.  10.10 

D.  11 
Two trains 200 m and 150 m long are running on parallel rails at the rate of 40 kmph and 45 kmph respectivelyIn how much time will they cross each other, if they are running in the same direction?
A.  252 sec 

B.  260 sec 

C.  267 sec 

D.  272 sec 
A jogger running at 9 kmph alongside a railway track is 240 metres ahead of the engine of a 120 metre long train running at 45 kmph in the same direction. In how much time will the train pass the jogg
A.  32 sec 

B.  34 sec 

C.  36 sec 

D.  40 sec 
How many seconds will a 500 metre long train take to cross a man walking with a speed of 3 km/hr in the direction of the moving train if the speed of the train is 63 km/hr?
A.  20 

B.  30 

C.  40 

D.  50 
A train 125 m long passes a man, running at 5 km/hr in the same direction in which the train is going, in 10 seconds. The speed of the train is:
A.  49 km/hr 

B.  50 km/hr 

C.  51 km/hr 

D.  52 km/hr 
Speed of the train relative to man = (125/10) m/sec = (25/2) m/sec. [(25/2) * (18/5)] km/hr = 45 km/hr.
Let the speed of the train be x km/hr.
Then, relative speed = (x  5) km/hr. x  5 = 45 ==> x = 50 km/hr.
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