A motorboat can travel at 10 km/hr. in still water it travelled 91 km downstream in a river and then returned taking at together 20 hours. Find the rate of flow of the river

A motorboat can travel at 10 km/hr. in still water it travelled 91 km

1.	A motorboat can travel at 10 km/hr. in still water it travelled 91 km downstream in a river and then returned taking at together 20 hours. Find the rate of flow of the river
A.	5 km/hr
B.	8 km/hr
C.	3 km/hr
D.	6 km/hr
Answer» D. 6 km/hr

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A motorboat can travel at 10 km/hr. in still water it travelled 91 km downstream in a river and then returned taking at together 20 hours. Find the rate of flow of the river

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