Four bells begin to ring together and then ring at intervals of 8 sec, 10 sec, 15 sec and 6 sec respectively. After what time will they ring together again ?

Four bells begin to ring together and then ring at intervals of 8 s

1.	Four bells begin to ring together and then ring at intervals of 8 sec, 10 sec, 15 sec and 6 sec respectively. After what time will they ring together again ?
A.	40 sec
B.	70 sec
C.	100 sec
D.	120 sec
Answer» D. 120 sec

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Four bells begin to ring together and then ring at intervals of 8 sec, 10 sec, 15 sec and 6 sec respectively. After what time will they ring together again ?

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