Six bells commence tolling together at intervals of 2, 4, 6, 8, 10 and – McqOptions

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1.	Six bells commence tolling together at intervals of 2, 4, 6, 8, 10 and 12 seconds respectively. In 30 min. how many times do they toll together ?
A.	16
B.	15
C.	10
D.	4
Answer» E.

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