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Question

You want to put a 6 inch thick layer of topsoil for a new 27 ft by 28 ft garden. The dirt store sells by the cubic yards. How many cubic yards will you need to order? The store only sells in increments of 1/4 cubic yards.

Answer 1

1/2 x 27 x 28 = 27x14 = 756 ft^3

1 yd^3 = 3^3 ft^3 = 27 ft^3

756/27 = 14 yd^3

you need to order 14 cubic yards

in lots of 1/4 yard^3

that means 4x14 = 56 lots