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A man takes 150 steps walking 120 meters. Find his speed in kmph, if he takes 3 steps in one second.

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8.64 km/ h

9.39 km/ h

5.82 km/ h

4.77 km/ h

answer is A.

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Detailed Solution

Concept: He covers 120m in 150 steps. Time taken for 3 steps is 1 second.

Time taken to cover 3 steps is 1 second.
Time taken for 150 steps =

In 150 steps that man covered 120m, which means that the time taken to cover 120m is 50 seconds.

But we were asked to find the speed in kmph.
Question Image

Hence, the correct answer is option 1.

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