math
posted by mark .
A clerk is packing cubes into a box each cube has edges of 6 inches the dimensions of the box are 15 inches by 30 i.ches by 18 inches find how many cubes will fit in the box ?
I don't know how to solve and explain how i found my answer please

The dimensions are divisible by 6 except 15 so the cubes will fit exactly on the bottom
area of 30*18 = 6*6 *15
so 15 cubes covers 30*18
now it can only be 2 cubes high because of the 15 inch height limitation
so
15*2 = 30 cubes
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