Question

(4) If six bells starts ringing together and if they ring at intervals of 1,2,4,6,8,10
and
12 seconds in a sequence, then how many times would they ring together in 30
minutes?​

Answer 1

Answer:

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Step-by-step explanation:

The least common multiple (LCM) of 2, 4, 6, 8, 10, and 12 is 120. Thus, the bells toll together every 120 seconds (or 2 minutes), so in 30 minutes they will toll simultaneously 30/2 = 15 times