AMC 10A 2009 Problem 7

A carton contains milk that is 2 \% fat, an amount that is 40 \% less fat than the amount contained in a carton of whole milk. What is the percentage of fat in whole milk?

Answer Choices
A. \dfrac{12}{5}
B. 3
C. \dfrac{10}{3}
D. 38
E. 42