A, B and C are running in same direction around a circular playground – McqOptions

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1.	A, B and C are running in same direction around a circular playground and all the three are started from same point. If A, B and C complete one round of running in 42, 68 and 126 seconds respectively, when do they meet again at the starting point?
A.	After 72 Minutes 24 Seconds
B.	After 70 Minutes 24 Seconds
C.	After 71 Minutes 26 Seconds
D.	After 71 Minutes 24 Seconds
Answer» E.

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