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1993 AJHSME Problems/Problem 21

Revision as of 19:14, 19 August 2011 by Mrdavid445 (talk | contribs) (Created page with "==Problem== If the length of a rectangle is increased by <math>20\% </math> and its width is increased by <math>50\% </math>, then the area is increased by <math>\text{(A)}\ 1...")
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Problem

If the length of a rectangle is increased by $20\%$ and its width is increased by $50\%$, then the area is increased by

$\text{(A)}\ 10\% \qquad \text{(B)}\ 30\% \qquad \text{(C)}\ 70\% \qquad \text{(D)}\ 80\% \qquad \text{(E)}\ 100\%$

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