UKMT Grey Kangaroo, 2016

Algebra Difficulty 1.0 Junior Find the answer United Kingdom

In my school, $60\%$ of the teachers come to school by bicycle. There are $45$ teachers who come to school by bicycle. Only $12\%$ come to school by car. How many teachers come to school by car?

(A) $4$ (B) $6$ (C) $9$ (D) $10$ (E) $12$

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