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Question

Nobita can row from a point A against a current for 30 minutes and then come back in favour of the current for the next 30 minutes and comes to the point
B. If the distance of AB is 2 `2/5` km, then find the speed of the current (in km/hr)?

A 3.6 km/hr

B 3 km/hr

C 2.4 km/hr

D 4.8 km/hr

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