The time taken by Mr.Dhoni to row his boat upstream is twice the time taken by him to row the same ...

The time taken by Mr.Dhoni to row his boat upstream is twice the time taken by him to row the same distance downstream. If the speed of the boat in still water is 72 kmph, find the speed of the stream?

Answer/Solution

24 kmph

Steps/Work

The ratio of the times taken is 2:1.
The ratio of the speed of the boat in still water to the speed of the stream = (2+1)/(2-1) = 3/1 = 3:1
Speed of the stream = 72/3 = 24 kmph.
Answer: A

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The time taken by mr. Dhoni to row his boat upstream is twice the time taken by him to row the same distance downstream. If the speed of the boat in still water is kmph, find the speed of the stream?

Calculated Answer

Step by Step Solution

In order to solve problem, you must evaluate ((n₀ * 2) / 3) / 2.

n₀ =	72

((n₀ * 2) / 3) / 2
Evaluate n₀ * 2 = 144
(144 / 3) / 2
Evaluate 144 / 3 = 48
48 / 2
Evaluate 48 / 2 = 24
24
The answer to the problem and the result of ((n₀ * 2) / 3) / 2 is 24

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