Solve the problem.
-At a national computer show, two software companies continuously run videos showing their products. Company A's video repeats every 6 minutes, while Company B's video repeats every 15 minutes. If both companies begin the videos at 1:00 P.M. when the show opens, how many minutes will elapse before they are in sync again?
A) 10 minutes
B) 30 minutes
C) 60 minutes
D) 20 minutes

Question

Quizplus · Accepted Answer

To find when the videos will be in sync again, we need to find the Least Common Multiple (LCM) of their cycle times. The LCM of 6 and 15 is 30, meaning after 30 minutes, both videos will start again at the same time.

Solve the Problem. -At a National Computer Show, Two Software Companies Continuously Run