1.

A motor boat going down stream comes over a floating body at a point `A`. 60 minutes later it turned back and after some time passed the floating body at a distance of `12 km` from the point `A`.Find the velocity of the stream assuming constant velocity for the motor boat in still water.A. `2 km//hr`B. `3 km//hr`C. `4 km//hr`D. `6 km//hr`

Answer» Correct Answer - D
`d=(v_(B)+v_(W))t_(1)` --(1)
`d-12=(v_(B)-v_(W))t_(2)`--(2)
`12=v_(w)(t_(1)+t_(2))`- - - (3) solve above equations


Discussion

No Comment Found

Related InterviewSolutions