Question

Three Bell ring at intervals of 10 12 and 15 minutes Respectively if they rang together at 8:30 a.m then when will they ring togeher again

Answer 1

Step-by-step explanation:

Find the least common multiple of 10, 15, 20,

Prime factor

10: 2*5

15: 3*5

20: 2*2*5

then

2*2*3*5 = 60 is LCM

:

60 min from 11 is 12

sorry but I am not confirm but I tried

please mark me ws brainly