If 35% of a number is 12 less than 50% of that number, then the number is?	Choose the correct choice from the following answers.
A) 40	B) 50	C) 60	D) 80	E) 70

Rationale: "let the number be x . then , 50 % of x - 35 % of x = 12 50 / 100 x - 35 / 100 x = 12 x = ( 12 * 100 ) / 15 = 80 . answer : d"
Answer: D