A boat whose speed in still water is 9 kmph, goes 12 kmÂ downstream and comes back in 3 hrs. Find the speed of the stream?

A boat whose speed in still water is 9 kmph, goes 12 kmÂ downstream

1.	A boat whose speed in still water is 9 kmph, goes 12 kmÂ downstream and comes back in 3 hrs. Find the speed of the stream?
A.	1 kmph
B.	3 kmph
C.	5 kmph
D.	4 kmph
Answer» C. 5 kmph

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A boat whose speed in still water is 9 kmph, goes 12 kmÂ downstream and comes back in 3 hrs. Find the speed of the stream?

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