LCM and HCF Practice Test 5

Question : 27 of 33

Marks: +1, -0

Rina, Rita and Riya started running around a circular park. They completed one round in 45 seconds, 60 seconds and 36 seconds respectively. After how much time will they meet at the starting point?

3 minutes
7 minutes
11 minutes
5 minutes
None of these

Validate

Solution:

LCM of 45, 60 and 36

= 180=180/60\minutes

Hence, they will meet after 180 seconds = 3 minutes.

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