The cash difference between the selling prices of an book at a profit of 12% and 20% is $3. The ratio of the two selling prices is: Choose the correct choice from the following options:
A) 55 : 23	B) 52 : 33	C) 52 : 53	D) 45 : 53	E) 14 : 15

Rationale: "let c . p . of the book be $ x . then , required ratio = 112 % of x / 120 % of x = 112 / 120 = 14 / 15 = 14 : 15 e"
Answer: E