a boat goes 20 km downstream in one hour and the same distance upstream in 2 h

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Question

a boat goes 20 km downstream in one hour and the same distance upstream in 2 hours. the speed of the boat in still water is

Options:

A . 15 Km/hr

B . 10 Km/hr

C . 5 Km/hr

D . 7.5 Km/hr

Answer: Option A
Explanation :

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