If c is 25% of a and 50% of b, what percent of a is b? Choose one.
A) 2.5% B) 50% C) 25% D) 35% E) 250%
Answer = 50%   25a/100 = 50b/100   b = 25a/50 = 50a/100 =50%
<result>B</result>
If c is 25% of a and 50% of b, what percent of a is b?