the movie house give away a $5 coupon for every 4 movies purchased. they give away a bag of popcorn for every 3 movies purchased. how many movies will a person need to purchase before receiving a both a $5 coupon and a bag of popcorn at the same time?
if they receive a coupon for every four movies, and a bag of popcorn for every three movies, you need to find the LCM (lowest common multiple) of the two numbers, which is 12.
