four bells toll after an interval of 10, 12, 15 and 20 seconds respectively. when will they toll again, if they begin to toll at 8 am?
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Answer:
We need to find the LCM of 8 9 12 and 15
8 = 2x2x2
9 = 3x3
12 = 2x2x3
15 = 3x5
LCM = 2x2x2x3x3x5 = 360 seconds
All 4 bells will toll together after every 360 seconds
Step-by-step explanation:
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