A man can row upstream at 12 km/hr and downstream at 18 km/hr. The man's rowing speed in stillwater is
Downstream speed = 18 km/hr and upstream speed = 12 km/hr
Thus, man's rowing speed in still water = $$\frac{(18+12)}{2}$$
= $$\frac{30}{2}=15$$ km/hr
=> Ans - (A)
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