The ratio between the sale price and the cost price of an article is 6:2. What is the ratio between the profit and the cost price of that article?	Options.
A) 23	B) 1 : 2	C) 2 : 5	D) 3 : 5	E) 2 : 1

Rationale: "c . p . = rs . 2 x and s . p . = rs . 6 x . then , gain = rs . 4 x required ratio = 4 x : 2 x = 2 : 1 e"
Answer: E