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A passenger train of length 60 m travel...

A passenger train of length 60 m travels at a speed of 80 km / hr. Another freight train of length 120 m travels at the speed of 30 km/hr , the ratio of times taken by the train to completely cross the freight train when :(i) they are moving in direction , and (ii) in the opposite directions is :

A

`(5)/(2)`

B

`(11)/(5)`

C

`(3)/(2)`

D

`(25)/(11)`

Text Solution

Verified by Experts

The correct Answer is:
B
`t_(1)` (moving is same direction) `=(x)/(v-4)=(x)/(50)`
`t_(2)` (moving in opposite direction) `=(x)/(v+4)=(x)/(110)`
`(t_1)/(t_2)=(11)/(5)`.
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