A boat which has a speed of 5 km/hr in still water crosses a river of – McqOptions

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1.	A boat which has a speed of 5 km/hr in still water crosses a river of width 1 km along the shortest possible path in 15 minutes. The velocity of the river water in km/hr is
A.	1
B.	3
C.	4
D.	7
Answer» C. 4

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