The cash difference between the selling prices of an book at a profit of 4% and 6% is $3. The ratio of the two selling prices is:
Answers: A) 50 : 53 B) 58 : 53 C) 52 : 53 D) 42 : 36 E) 38 : 53

Rationale: "c 52 : 53 let c . p . of the book be $ x . then , required ratio = 104 % of x / 106 % of x = 104 / 106 = 52 / 53 = 52 : 53"
Answer: C