Question

four bells tool after an interval of 8,9,12 and 15 swconds respectively when will they toll again?​

Answer 1

Step-by-step explanation:

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