The ratio of the selling prices of three articles is 5:6:9 and the ratio of their cost prices is 4:5:8 respectively. What is the ratio of their respective percentages of profit, if the profit on the first and the last articles is the same?  Answers:
A) 4:5:6  B) 10:8:5  C) 5:6:9  D) 7:6:9  E) Cannot be determined
Given that the selling prices of three articles,   S.P1 =5X, S.P2 =6X, S.P3 =9X,   And their cost prices are C.P1 =4Y, C.P 2 =5Y, C.P3 =8Y   Given that , S.P1 –C.P1 =S.P2 –C.P2, 5X-4Y =9X-8Y, X =Y,   Their profit percentages are, p1 =(5-4)/4*100= 
<gadget id="calculator">(5-4)/4*100</gadget>
<output>25</output>
25% ,   p2= (6-5)/5*100= 
<gadget id="calculator">(6-5)/5*100</gadget>
<output>20</output>
20%, p3= (9-8)/8*100 = 12 1/2 %   Ratio of the percentages is 25:20:12 1/2 = 10:8:5   ANSWER:10:8:5
<result>B</result>
The ratio of the selling prices of three articles is 5:6:9 and the ratio of their cost prices is 4:5:8 respectively. What is the ratio of their respective percentages of profit, if the profit on the first and the last articles is the same?