Question

David is packing bundles of 3 inch by 5 inch cards,face up,into a square box. He places the cards side by side so that there is no wasted space. Find the smallest measure for the edge of the box.

Answer 1

Answer: 15 inches

Step-by-step explanation:

Since the box must be square, we find the Lowest common multiple of 3 and 5, which is 15