If y is 50 percent greater than x, then x is what percent less than y?	Answers: A) 20% B) 25% C) 33% D) 50% E) 67%
y = 1.5x   x = y/1.5 = 10y/15 = y - (1/3)*y   1/3 is about 33%.   The answer is 33%.
<result>C</result>
If y is 50 percent greater than x, then x is what percent less than y?