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Two trains take 3s to pass another when ...

Two trains take `3s` to pass another when going in the opposite directions but only `2.5s` if the speed of one is increased by `50%`. The time one would take to pass the other when going in the same direction at their original speed is

A

`10s`

B

`12s`

C

`15s`

D

`18s`

Text Solution

Verified by Experts

The correct Answer is:
C
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