Question

Three bell toll together at intervals of 9,12,15 minutes . If they start tolling together ,after what time will they next toll together​

Answer 1

Answer:

3 hours

Step-by-step explanation:

easy just take lcm : Solution. The L.C.M. of 9, 12, and 15 will give us the minutes after which the bells will next toll together. So, the bells will toll together after 180 min.

Answer 2

Answer:

3hours

Step-by-step explanation:

The LCM of 9,12,15 will give us the minutes after which the bell will next toll together.

LCM : 2²×3³×5

= 180

so, the bell will toll together after 180 minute.

On converting into hours :

180/60 = 3 hours

Hope it helps you