A boat covers a certain distance downstream in \(\frac{1}{2}\) hour, while it comes back in \(1\frac{1}{2}\) hours. If the speed of the stream be 5 kmph. What is the speed of the boat in still water?

A boat covers a certain distance downstream in \(\frac{1}{2}\) hour,

1.	A boat covers a certain distance downstream in \(\frac{1}{2}\) hour, while it comes back in \(1\frac{1}{2}\) hours. If the speed of the stream be 5 kmph. What is the speed of the boat in still water?
A.	10 kmph
B.	12 kmph
C.	13 kmph
D.	15 kmph
Answer» B. 12 kmph

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A boat covers a certain distance downstream in \(\frac{1}{2}\) hour, while it comes back in \(1\frac{1}{2}\) hours. If the speed of the stream be 5 kmph. What is the speed of the boat in still water?

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