Question

C
35. Three bells ring at intervals
of 12,15 and 18 min,
respectively. They started
ringing simultaneously at
9:00am. What will be the
next time when they all ring
simultaneously? i)10:00 ii)11:00 iii)12:00 iv)1:00​

Answer 1

Answer:

LCM of 12,15,18 is 180 min

so the bells will ring after 3 hour at 12:00

iii)12:00