Three persons A, B, C are moving along a...

Three persons A, B, C are moving along a straight line as shown with constant and different speeds. When B catches C, the seperation between A & C becomes 4d, then the speed of B is

`15 m//s`

`10 m//s`

`12.5 m//s`

not possible

Text Solution

Verified by Experts

The correct Answer is:

with respect to C

`(d)/(u - 10) = (2d)/(5)`
`rArr u = 12.5 m//s`

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