2001 Fermat Problem 3

In a school, 30 boys and 20 girls entered the Fermat competition. Certificates were awarded to 10\% of the boys and 20\% of the girls. Of the students who participated, the percentage that received certificates was

\textbf{(A)}\ 14\quad \textbf{(B)}\ 15\quad \textbf{(C)}\ 16\quad \textbf{(D)}\ 30\quad \textbf{(E)}\ 50

If there are no answer choices shown, enter a numerical answer.

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