Question

3 BELL TOLLS AT INTERVALS OF 9,12,15 MIN RESPECTIVELY IF THEY START TOLLING TOGETHER ,AFTER WHAT TIME WILL THEY TOLL NEXT?

Answer 1

heya mate...❤❤

Here we have to find LCM
Three bells toll at intervals - 9min , 12 min and 15min.

So , if they start tolling together, they will ring together at LCM ( 9,12,15)

So, We have to find LCM of 9 , 12 and 15.

9 = 3×3

12 = 2×2×3

15 = 3×5

LCM (9, 12,15) = 3×3×2×2×5 = 180

So , the LCM of 9 , 12 and 15 is 180. The bells will toll together after 180 minutes or 3 hours.

Answer) Bells will toll together after 180 minutes or 3 hours...

thnx..and thats ur answer
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mrk as brainliest....