Question

Church bells in 3 churches ring at intervals of 10, 12 and 15 minutes. If they ring together at 8:30 a.m., when will they ring together again?

Answer 1

first find the LCM of 10,12 and 15 which is 60.

NOW, the bell will again ring after 60 minutes or 1 hour means at 9:30 a.m.

Answer 2

Answer:9:30a.m.

Step-by-step explanation:

LCM of 12,10,15=60

so after 60 minutes at 9:30 they rang together