Harold's fancy wrapping paper can wrap 5 shirt boxes or 3 XL boxes. For the upcoming holiday, he has 20 shirt boxes to wrap and 12 XL boxes to wrap. If each roll of wrapping paper costs $4.00 per roll, how much will he spend to wrap all of the boxes?
Thoughts? Step-by-step reasoning:
1 roll can wrap 5 shirt boxes and he has 20 shirts boxes to wrap so he needs 20 / 5 = 4 rolls of wrap. 1 roll can wrap 3 XL boxes and he has 12 XL boxes to wrap so he needs 12 / 3 = 4 rolls or wrap. All total he needs 4 + 4 = 8 rolls of wrap. Each roll costs $4.00 and he needs 8 rolls so it will cost him 4 * 8 = $32.00 in wrapping paper.
Thus, the answer is 32.