Question

A warehouse has 5 shelves long enough to hold 7 boxes and high enough to hold 4 boxes. All the shelves are full. How many boxes are there?

Answer 1

140 boxes

Explanation:

7 groups of boxes can be stacked 4 times on each shelf.

7 *4= 28

28 boxes could fit on each shelf. There are 5 shelves.

28*5= 140 so 140 boxes in total.