A man rows upstream 16 km and downstream 28 km talking 5 hours each time. The velocity of the current is?

2.4 km/hr
1.2 km/hr
3.6 km/hr
1.8 km/hr

Correct Answer: 1.2 km/hr

Explanation:

Speed downstream = (28/5) km/hr = 5.6 km/hr
Speed upstream = (16/5) km/hr = 3.2 km/hr
Velocity of current = (5.6 - 3.2)/2 km/hr = 1.2 km/hr

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