The ratio between the sale price and the cost price of an article is 12:7. What is the ratio between the profit and the cost price of that article?
Pick
A) 2:9  B) 2:5  C) 3:6  D) 5:7  E) 2:1
Let C.P. = Rs. 7x and S.P. = Rs. 12x.   Then, Gain = Rs. 5x   Required ratio = 5x : 7x = 5:7   Answer:5:7
<result>D</result>
The ratio between the sale price and the cost price of an article is 12:7. What is the ratio between the profit and the cost price of that article?