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There is a circular path around a sports...

There is a circular path around a sports field. Priya takes 21 minutes to drive one round of the field, while Ravish takes 28 minutes for the same. Suppose they both started at the same point and at the same time, and go in the same direction. After how many minutes will they meet again at the starting point ?

A

18

B

12

C

84

D

36

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Knowledge Check

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