Question

Three bells ring at intervals of 15 s, 21 s and 16 s,respectively. All bells ring simultaneously at 12 : 00 noon . They will again ring simultaneously at ?



OPTION = ( A ) 28 min past 12
( B ) 25 min past 12
( C ) 26 min past 12
( D ) 24 min past 12​

Answer 1

Answer:

The attached answer is in the picture.

Answer 2

Answer:

option (A)

Step-by-step explanation:

1. take the LCM of 15,21,16
2. multiply their factors
3. convert seconds into minutes
4. answer will be 12:28, option(A)

hope it will help you:)