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1962 AHSME Problems/Problem 5

Revision as of 15:36, 17 March 2014 by Joey8189681 (talk | contribs)

Problem

If the radius of a circle is increased by $1$ unit, the ratio of the new circumference to the new diameter is:

$\textbf{(A)}\ \pi+2\qquad\textbf{(B)}\ \frac{2\pi+1}{2}\qquad\textbf{(C)}\ \pi\qquad\textbf{(D)}\ \frac{2\pi-1}{2}\qquad\textbf{(E)}\ \pi-2$

Solution

The ratio of a circumference to a diameter always is the same so the answer is obviously C.

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