Radii of circles
Source:
March 2, 2010
ratio
Problem Statement
If the radius of a circle is increased by unit, the ratio of the new circumference to the new diameter is:
(A)\ \pi \plus{} 2 \qquad
(B)\ \frac{2 \pi \plus{} 1}{2} \qquad
(C)\ \pi \qquad
(D)\ \frac{2 \pi \minus{} 1}{2} \qquad
(E)\ \pi \minus{} 2