Question :

Question

(3.) A bus service centre has 2 feed services that start together at 8 a.m. Bus A leaves at,in 15 minutes interval, while bus B leaves at 20 minutes interval. On a particular day, howmany times do both services leave together from 8 a.m. to 11 a.m.?

Answer 1

LCM(15,20) = 60
So, they leave together once an hour.
Now finish it off.

Answer 2

Ans