Question

there are four Bells ringing at 5 6 8 10 minute regular interval in evening at 4:00 p.m. I was going I so they all were ringing together I ask my friend when it will happen again

Answer 1

Find the LCM:

5 = 5

6 = 2 x 3

8 = 2³

10 = 2 x 5

LCM = 2³ x 3 x 5 = 120

.

The 4 bells will ring together again after 120 mins

.

Convert to hours:

120 mins = 2 hours

.

Find the time they will ring together:

4pm + 2 hours = 6pm

.

Answer: 6pm