A, B and C start running around a circular field having circumference 150 metre at the same time from the same point. Speeds of A, B and C are 2 m/minute, 2.5 m/minute and 3 m/minute. Find after how much time, they will meet again at the same point for the first time.

A, B and C start running around a circular field having circumference

1.	A, B and C start running around a circular field having circumference 150 metre at the same time from the same point. Speeds of A, B and C are 2 m/minute, 2.5 m/minute and 3 m/minute. Find after how much time, they will meet again at the same point for the first time.
A.	9 hours
B.	7 hours
C.	6 hours
D.	5 hours
E.	None of these
Answer» E. None of these

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A, B and C start running around a circular field having circumference 150 metre at the same time from the same point. Speeds of A, B and C are 2 m/minute, 2.5 m/minute and 3 m/minute. Find after how much time, they will meet again at the same point for the first time.

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