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Question

A motorboat covers 48 km downstream and 30 km upstream in 6 hours. Under the same conditions, it covers 64 km downstream and 20 km upstream also in 6 hours. Find the speed of the boat in still water and the speed of the stream.

A Boat speed = 13 km/h; stream speed = 3 km/h.

B Boat speed = 23 km/h; stream speed = 10 km/h.

C Boat speed = 33 km/h; stream speed = 8 km/h.

D Boat speed = 10 km/h; stream speed = 2 km/h.

E None of these

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