If y > 0, (1y)/20 + (3y)/10 is what percent of y?	Choose the correct choice from the following choices.
A) 35 %  B) 50 %  C) 60 %  D) 70 %  E) 80 %

Rationale: "can be reduced to y / 20 + 3 y / 10 = 7 y / 20 = 35 % a"
Answer: A