Question

Three bells start ringing together at 8:30 p.m. if there after 4 5 and 6 minutes respectively each time the next time they will ring together

Answer 1

Answer:

Step-by-step explanation:

At 8:45 a.m the three bell will ring together.

Answer 2

The next time after 8:30 pm when those three bells will ring together is at 9:30 pm.

Given,

Three bells start ringing together at 8:30 p.m.

They rang in the interval of 4,5 and 6 minutes after respectively.

To Find,

The next time when they will ring together.

Solution,

We can solve this mathematical problem in the following method.

As given, the

• The first bell rings in the interval of 4 minutes.
• The second bell rings in the interval of 5 minutes.
• The third bell rings in the interval of 6 minutes.

So when they will ring commonly we need to find that.

So, we need to calculate the LCM of (4,5, and 6).

LCM(4,5,6) = 60.

Therefore the three bells will ring after 60 minutes = 1 hour. This means after 8:30 pm they will ring at (8:30+1=)9:30 pm.

Hence, the next time when those three bells will ring together is at 9:30 pm.

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