A man can row upstream at 18 km/hr and downstream at 24 km/hr. Find the man’s rate in still water and the rate of the current.
Upstream = 18 km/hr Downstream = 24 km/hr Man’s rate in still water = 1/2 × (24 + 18 ) = 21 km/hr Rate of the current = 1/2 × (24 - 18) = 3 km/hr
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