Two trains are movinf in opposite directions. Their lenghts are 100 m each and they cross each other in 8 seconds. The speed of one train is twice that of other. Find the speed of the faster train.

Options
- 75 kmph
- 60 kmph
- 50 kmph
- 30 kmph

CORRECT ANSWER : 60 kmph

Discussion Board
Answer

S= D/T
So Relative speed = 200/8 = 25 m/s = 90km/hr
Trains travelling in opposite direction so speed is added.
Therefore let speed of one train be x and the other 2x
So x + 2x = 90
or x = 30
So one trains speed is 30Km/hr and another 60 km/hr.
So answer is 60 km/hr

Vinod 06-23-2017 05:45 AM

aptitude test

how it can 60 kmph i want solution

garlapati nithin 07-23-2014 10:40 AM

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