Question

A boat running upstream takes 7hours 18 mins to cover a certain distance, while it takes 3hours to cover the same distance in running downstream. What is the ratio btwn the speed of the boat and the speed of stream

Answer 1

Step-by-step explanation:

Let the man's rate upstream be x kmph and that downstream be y kmph.

Then, distance covered upstream in 8 hrs 48 min = Distance covered downstream in 4 hrs.

⇒x×845=y×4⇒445x=4y⇒y=115x

∴Requiredratio=y+x2:y−x2=(16x5×12):(6x5×12)=85:35=8:3

Answer 2

Answer:

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