Math CentralQuandaries & Queries


Question from Billy:

an object is 42 inches long, 29 inches wide, and 69 inches high. The usable capacity of this container is 36.4 cubic feet. How much space in percentage is left over from the container?


There are 12 inches in a foot so divide each of the dimensions by 12 to convert them to feet. Multiply the three resulting dimensions to obtain the volume in cubic feet. Subtract the usable volume to obtain the volume left over. Express this value as a percentage of the total volume.

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