Question

the bells toll at intervals of 9,12,15min respectively . if they start tolling together, after what time they toll together​

Answer 1

Answer: There bells toll at intervals of 9, 12, and 15 minutes. If they start tolling together, then after what time will they next toll together?

Write 9 , 12 and 15 product of prime factors,

9 = 3 × 3

12 = 2 × 2 × 3

15 = 3 × 5

LCM( 9 , 12 , 15 ) = 3 × 3 × 2 × 2 × 5

= 180

The Three bells toll together after 180 minutes .

Step-by-step explanation:

Answer 2

Answer:

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