Aptitude - Boats and Streams - Discussion

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Q.

A boat covers a certain distance downstream in 1 hour, while it comes back in 1½ hours. If the speed of the stream be 3 kmph, what is the speed of the boat in still water?  .                          


A.        12 kmph B.          13 kmph
C. 14 kmph D. 15 kmph

Answer: Option D
Explaination:

 





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