Mahesh rows to the place 80 km away and back in 20 hours. He finds that he can row 8 km downstream in the same time as 4 km upstream. The speed of the boat in stillwater is

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If Mahesh moves 8 km downstream in X hours Downstream speed = 8/X kmph upstream speed = 4/X kmph Now 80/(8/X) + 80/(4/X)=20 X=2/3 downstream Speed = 8/(2/3)= 12 kmph upstrea…

Mahesh rows to the place 80 km away and back in 20 hours. He finds that he can row 8 km downstream in the same time as 4 km upstream. The speed of the boat in stillwater is

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