Math Olympiad for Elementary | 2019 | Division E | Contest 5 | MOEMS | 5D

Problem: A rectangular prism (box) has volume 240 cubic cm. A smaller rectangular prism is removed from the larger prism. The lengths of the edges of the smaller prism are one-half the lengths of the corresponding edges of the larger prism. How many cubic centimeters is the volume of the remaining solid?

Key: Set variables x, y, and z.

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