A number x is 5 times another number y. The percentage that y is less than x is Answers:
A) 12.5 % B) 87.5 % C) 80 % D) 11 % E) 1 %

Rationale: "say y = 1 and x = 5 . then y = 1 is less than x = 5 by ( 5 - 1 ) / 5 * 100 = 4 / 5 * 100 = 80 % . answer : c ."
Answer: C