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Average Velocity - Special Case

Sia and Ria s...

Question

Sia and Ria start running in the same direction on a circular track. If they can complete one round of the track in 12 s and 18 s respectively, after how much time (in s) will they meet for the first time?

A

24

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B

12

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C

72

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D

36

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Solution

The correct option is D 36
After each round the person will return to the starting point.

So, we can say that Sia will meet Ria just after completing her third round, which will take 36 seconds.

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Average Velocity - Special Case

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