Math, asked by rajlaxmisingh25, 7 months ago

Five bells begin to toll together and toll respectively at intervals of 6, 7,

8 and 12 seconds. After how much time will they toll together again?

please do with solution​

Answers

Answered by Anonymous
1

Answer:

L.C.M. of 6, 5, 7, 10 and 12 is 420. So, the bells will toll together after every 420 seconds i.e. 7 minutes. Now, 7 x 8 = 56 and 7 x 9 = 63. Thus, in 1-hour (or 60 minutes), the bells will toll together 8 times, excluding the one at the start.

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