Question

3 bells ring at intervals of 3, 6, and 8 minutes. If they all rang together at

3:00, what time will they ring together again?

Answer 1

The next they will ring again is after 8 hours.

Explanation:

Answer 2

Find the least common multiple of 3,6 and 8:

3,6,9,12,15,18,21,24

6,12,18,24

8,16,24

The least common multiple is 24 so all 3 bells will ring together every 24 minutes.

answer: 3:24