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, 2003

Algebra Difficulty 1.0 Junior Find the answer Canada

The average (mean) of $\frac{1}{5}$ and $\frac{1}{10}$ is $\frac{1}{x}$ . The value of $x$ is

(A) $\frac{20}{3}$ (B) $\frac{3}{20}$ (C) $30$ (D) $\frac{10}{3}$ (E) $\frac{2}{15}$

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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.