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A boatman takes twice as long to row a distance against the stream as to row the same distance with the stream. Find the ratio of speeds of the boat in still water and the stream.

A) 2 : 1
B) 3 : 1
C) 1 : 2
D) 1 : 3

Correct Answer:


B) 3 : 1

Description for Correct answer:
Let boatan's speed upstreaj x

And his speed downstream = 2x

Therefore, Ratio = (Speed in still water) : (Speed of stream)

= \( \Large \left(\frac{2x+x}{2}\right) : \left(\frac{2x-x}{2}\right) \)

= \( \Large \frac{3x}{2} : \frac{x}{2} = 3 : 1 \)

Part of solved Boat and Stream questions and answers : >> Aptitude >> Boat and Stream

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