Discussion of Question with ID = 068 under HCF-and-LCM

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Question

Three cyclists are cycling in a circular track. They, respectively, take 4, 7 and 22 minutes to complete the circle once. After how many minutes will they all again meet at a single point?

A

308 minutes.

B

616 minutes.

C

154 minutes.

D

309 minutes.

Soln.
Ans: a

The answer lies in finding the LCM of their times. The LCM of 4, 7 and 22 = 308.


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