Question

four bells intervals of 8,12,18 and 20 minutes respectively. at what time will they ring together if they start ringing simultaneously at 10 a.m.? solve

Answer 1

Firstly, take the LCM of bells interval =

LCM ( 8, 12, 18, and 20 ) = 360.

so, after 360 minutes bells will ring together.

We know that,

60 minutes = 1 hour
therefore,
360 minutes = 360/60 = 6 hours

After 6 hours means 10 am + 6hours = 4pm

so, bells will ring together at 4 pm.

Hope it will help u !!

Answer 2

Answer:

4 pm

Step-by-step explanation:

Firstly, take the LCM of bells interval =

LCM ( 8, 12, 18, and 20 ) = 360.

so, after 360 minutes bells will ring together.

We know that,

60 minutes = 1 hour

therefore,

360 minutes = 360/60 = 6 hours

After 6 hours means 10 am + 6hours = 4pm

so, bells will ring together at 4 pm.

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