A boat covers 36 km downstream in 4 hours and 18 km upstream in 6 hours. Find the speed of boat in still water.

A boat covers 36 km downstream in 4 hours and 18 km upstream in 6 hour

1.	A boat covers 36 km downstream in 4 hours and 18 km upstream in 6 hours. Find the speed of boat in still water.
A.	12 km/hr
B.	9 km/hr
C.	6 km/hr
D.	5 km/hr
E.	3 km/hr
Answer» D. 5 km/hr

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A boat covers 36 km downstream in 4 hours and 18 km upstream in 6 hours. Find the speed of boat in still water.

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