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

Rationale: let c . p . = rs . 3 x and s . p . = rs . 5 x . then , gain = rs . 2 x required ratio = 5 x : 2 x = 5 : 2 answer : d
Answer: D