A man can row 5 kmph in still water

Asked by admin @ 13/08/2021 in Math viewed by 325 People

A man can row 5 kmph in still water.if the river is running at 1kmph,it takes 75min to go to a place and come back

Answered by admin @ 13/08/2021

Hey Jasika,

The answer is :3 Km.
Explanation:
Speed downstream = (5+1)km/hr = 6 km/hr Speed upstream = (5-1)km/hr = 4 km/hr Let the required distance be x km x/6 + x/4 = 75/60 2x+3x = 15 x = 3km .

Hope it's help uh.
Thank-you.

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