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1950 AHSME Problems/Problem 19

Revision as of 23:43, 17 November 2011 by Jli10 (talk | contribs) (Created page with "If <math> m </math> men can do a job in <math> d </math> days, then <math> m+r </math> men can do the job in: <math> \textbf{(A)}\ d+r \text{ days}\qquad\textbf{(B)}\ d-r\text{ d...")
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If $m$ men can do a job in $d$ days, then $m+r$ men can do the job in: $\textbf{(A)}\ d+r \text{ days}\qquad\textbf{(B)}\ d-r\text{ days}\qquad\textbf{(C)}\ \frac{md}{m+r}\text{ days}\qquad\\ \textbf{(D)}\ \frac{d}{m+r}\text{ days}\qquad\textbf{(E)}\ \text{None of these}$

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