A. 42
B. 45
C. 48
D. 51
Relative speed = (60+ 90) km/hr
= [ 150 x (5/18) ] m/sec
= (125/3) m/sec
Distance covered = (1.10 + 0.9) km = 2 km = 2000 m
Required time = [ 2000 x (3/125) ] sec = 48 sec
A jogger running at 9 kmph alongside a railway track in 240 metres ahead of the engine of a 120 metres long train running at 45 kmph in the same direction. In how much time will the train pass the jogger?
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?
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?
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:
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A train 800 metres long is running at a speed of 78 km/hr. If it crosses a tunnel in 1 minute, then the length of the tunnel (in meters) is:
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A train speeds past a pole in 15 seconds and a platform 100 m long in 25 seconds. Its length is: