The ratio of cost price to the market price of an article is 4: 5. What is the profit percentage if the ratio of the profit percentage on selling the article to the discount allowed on it is 5: 4? Answers:	A) 10%	B) 12%	C) 12.5%	D) 15%	E) 16%
lets assume mp=100 and cp=80   p/d=5/4   therefore d= p*(4/5)   now cp + profit = mp- discount= sp   80+ p(80/100)=100-(p*(4/5)*(100/100))   solving for p we get p=12.5%   ANSWER:12.5%
<result>C</result>
The ratio of cost price to the market price of an article is 4: 5. What is the profit percentage if the ratio of the profit percentage on selling the article to the discount allowed on it is 5: 4?