Three persons are walking around a ground. They take 20, 30 and 40 min – McqOptions

MCQOPTIONS

1.	Three persons are walking around a ground. They take 20, 30 and 40 minutes to complete one round. If they start form a single point together, they will meet again at that point after.
A.	1 hour
B.	\(1\frac{1}{2}\) hour
C.	2 hour
D.	\(2\frac{1}{2}\) hour
Answer» D. \(2\frac{1}{2}\) hour

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