Question

e Exercise
8. Three bells ring at intervals of 15 s, 21s
and 16 s, respectively. All bells ring
simultaneously at 12:00 noon. They will
again ring simultaneously at
(1) 28 min past 12
(2) 25 min past 12
(3) 26 min past 12
(4) 24 min past 12
9. Three bells ring at intervals of 12 s, 9​

Answer 1

Answer:

28+12+25+12+26+12+24+12=1,427