adritatasnm
Hello. Can anyone help me how to solve the following math👇
Six bells commence tolling together and toll at intervals of 2,4,6,8,10 and 12 seconds respectively.In 30 minutes,how many times do they toll together?
Yes:
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. However, since they commence tolling together at the beginning (i.e., they are tolling together at the 0th second or the 0th minute), we need to add 1 to 15 and thus they toll together a total of 16 times.
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