If a large pizza has a radius that is 40% larger that that of a medium pizza, what is the percent increase in area between a medium and a large pizza? Choose the correct choice from the following answers: A) 40% B) 80% C) 96% D) 112% E) 124%
Let the radius of medium pizza be r. Then the radius of large pizza is 1.4r.   The area of the medium pizza is pi*r^2   The area of the large pizza is pi*(1.4*r)^2 = 1.96*pi*r^2, an increase of 96%.   The answer is 96%.
<result>C</result>
If a large pizza has a radius that is 40% larger that that of a medium pizza, what is the percent increase in area between a medium and a large pizza?