Question

Two of the lights at the local stadium are flickering. They both just flickered at the same time. One of the lights flickers every 7 seconds and the other light flickers every 8 seconds. How many seconds until both lights will flicker at the same time again?

Answer 1

As we have to find out the LCM of the 7 and 8
7*8=56
at 56 seconds they will flicker again

Answer 2

i think 56 seconds............