We are asked to stack 84 boxes in a two layers display:
the number of boxes is:
Since we need two layers, this means that h =2:
Since the number of boxes is 84, we replace V = 84:
We divide by 2 and we get:
There must be 42 boxes in the length and width directions.
We can use 7 boxes in the length directions and since each box has a side of the total length would be:
And we can use 6 boxes in the width direction and the width would be:
Therefore, the display is:
