Question

At the grand opening of a movie theater, every 12th customer received a free bag of popcorn and every 30th customer received a free box of candy. Which customer will be the first to receive both items?

Answer 1

Your answer would be the 60th

Explanation:

This is your solution due to the fact that when you find the multiples of 12 and 30 you will realize that that's the first number they meet at, let me show you.

Multiples of 12 - 12, 24, 36, 48, 60

Multiples of 30 - 30, 60, 90, 120, 150

So The Least Common Denominator is 60!

Thus that is how I know that the 60th customer at the movie theater would get both items for free.

Hope This Helped!