The ratio between the sale price and the cost price of an article is 10:7. What is the ratio between the profit and the cost price of that article? Select
A) 2:9 B) 2:5 C) 3:7 D) 2:0 E) 2:1
Let C.P. = Rs. 7x and S.P. = Rs. 10x.   Then, Gain = Rs. 3x   Required ratio =3x : 7x = 3:7   Answer:3:7
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The ratio between the sale price and the cost price of an article is 10:7. What is the ratio between the profit and the cost price of that article?