The ratio between the sale price and the cost price of an article is 4:3. What is the ratio between the profit and the cost price of that article?	Choose the correct choice
A) 2 : 9 B) 2 : 5 C) 3 : 6 D) 2 : 0 E) 1 : 3

Rationale: "let c . p . = rs . 3 x and s . p . = rs . 4 x . then , gain = rs . x required ratio = x : 3 x = 1 : 3 answer : e"
Answer: E