Ask Question
16 March, 10:20

Five bells begin to ring together and they ring at intervals of 3, 4, 8, 12 and 15 seconds, respectively. How many times will they ring together at the same second in one hour excluding the one at the end?

+5
Answers (1)
  1. 16 March, 13:55
    0
    30 times

    Step-by-step explanation:

    1) First finding LCM of 3,4,8,12,15

    3 = 3x1

    4 = 2x2

    8 = 2x2x2

    12 = 3x2x2

    15 = 5x3

    LCM = 2x2x2x3x5 = 120

    The bells will ring together every 120 seconds

    2) The number of times they will roll together in an hour = 3600/120 = 30
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “Five bells begin to ring together and they ring at intervals of 3, 4, 8, 12 and 15 seconds, respectively. How many times will they ring ...” in 📘 Mathematics if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers