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A fast moving superfast express crosses another pasenger train in 20 seconds. The speed of faster train is 72 km/hr and speeds of slower train is 27 km/h. Also the length of faster ntrain is 100m, then find the length of the slower train if they are moving in the same direction.

Correct Answer: 150 m

Explanation:

T i m e = S u m   o f   l e n g t h   o f   t h e   t w o   t r a i n s D i f f e r e n c e   i n   s p e e d s


20 = ( 100 + x ) 25 2  


 X=150m


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