The ratio between the sale price and the cost price of an article is 7:5. What is the ratio between the profit and the cost price of that article?	Choose the correct answer
A) 3:5 B) 5:5 C) 2:5 D) 1:6 E) 2:6
C   2:5   Let C.P. = $ 5x and S.P. = $ 7x.   Then, Gain = $ 2x   Required ratio = 2x : 5x = 2:5
<result>C</result>
The ratio between the sale price and the cost price of an article is 7:5. What is the ratio between the profit and the cost price of that article?