A ship travels downstream from point A to a point B in 2 hours and upstream in 3 hours. Then the time taken by log of wood to cover the distance from A to B is
A) 5h. B) 9h. C) 12h. D) 1h.
Explain in detail.
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Solution
Speed of the river- u Speed of the ship - v
Distance= speed*time =x Distance upstream = distance downstream So,