A man can row 6 km / hr in still water. If the speed of the current is 2 km / hr. it takes 3 hrs more in upstream than in the downstream for the same distance . The distance is __
A. 30 km
B. 24 km
C. 20 km
D. 32 km
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সঠিক উত্তরঃ
B.
24 km
Explanation:
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