Five bells begin to toll together and toll respectively at intervals o – McqOptions

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1.	Five bells begin to toll together and toll respectively at intervals of 6, 7, 8, 9 and 12 seconds. After how many seconds will they toll together again?
A.	2 seconds
B.	12 seconds
C.	04 seconds
D.	18 seconds
Answer» D. 18 seconds

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