Question

A boat travels 36 km downstream in 3 hours and the same distance upstream in 6 hours. Find the speed of the boat in still water and the speed of the stream.

A Boat speed = 19 km/h; Stream speed = 13 km/h.
B Boat speed = 9 km/h; Stream speed = 3 km/h.
C Boat speed = 11 km/h; Stream speed = 3 km/h.
D Boat speed = 29 km/h; Stream speed = 7 km/h.
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