Question

In a school , the duration of a class in the primary section is 40 minutes, and in the secondary section it is 1 hour. If both sections begin at 9 a.m , when will bells of the two sections ring together again ? ( show steps ) URGENNTTTTTTTT!! WHO EVER ANSWERS FAST WILL GET MARKED AS BRAINLIEST BY ME!

Answer 1

Answer:

11 am

Step-by-step explanation:

first find the LCM of 40 and 60....that is 120. So after 120 mins both bells will ring together....it means exactly after 2 hours.

9 + 2 = 11

Answer 2

Answer:

I think 11.00 am.......