A number x is 12 times another number y. The percentage that y is less than x is  Choose the correct choice:
A) 91.6 %
B) 87.5 %
C) 80 %
D) 11 %
E) 1 %

Rationale: "say y = 1 and x = 12 . then y = 1 is less than x = 12 by ( 12 - 1 ) / 12 * 100 = 11 / 12 * 100 = 91.6 % . answer : a ."
Answer: A