Question

While performing a piece of music, Tommy strikes the cymbals every 7 beats and the triangle is every 12 beats. If he just struck both at the same time, how many beats will pass before he again strikes them at the same time?

Answer 1

84

Explanation:

In interval questions we use LCM

LCM of 7, 12=84

Therefore, the number of beats will pass before he again strikes them at the same time is 84