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, 2011

Algebra Difficulty 1.0 Junior Find the answer Canada

A proposed new \$5 coin is called the "foonie". The foonie's two faces are identical and each has area $5$ cm $^2$ . The thickness of the foonie is $0.5$ cm. How many foonies are in a stack that has a volume of $50$ cm $^3$ ?

(A) $5$ (B) $10$ (C) $15$ (D) $20$ (E) $40$

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Source: CEMC, University of Waterloo, licensed CC-BY-NC-4.0. Statement reproduced verbatim; metadata (topic, difficulty) added by this project. Solutions are the publisher's, linked not copied.