A man rows 25 km upstream and 35 km downstream in 5 hr each Find the mans rate in still water ...........

Quantitative Aptitude ( CCS) Boats and Streams

A man rows 25 km upstream and 35 km downstream in 5 hr each. Find the man's rate in still water and the speed of current?

5 km/hr ; 5/6 km/hr

5 km/hr ; 6/5 km/hr

5/6 km/hr ; 5 km/hr

6 km/hr ; 1 km/hr

Speed Downstream = 35/5 = 7 km/hr

Speed Upstream = 25/5 = 5 km/hr

Man's Speed in still water = (7 + 5)/2 = 6 km/hr

Rate of Current = (7 - 5)/2 = 1 km/hr

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