A boat covers a certain distance downstream in 1 hour, while it comes back in 1(

Question

A boat covers a certain distance downstream in 1 hour, while it comes back in 1(1/2) hours. If the speed of the stream be 3 kmph, what is the speed of the boat in still water?

Options:

A . 12 kmph

B . 13 kmph

C . 14 kmph

D . 15 kmph

Answer: Option D
Answer: (d).15 kmph

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