A man sells an article at a profit of 25%. If he had bought it at 20% less and sold it for Rs.12.60 less, he would have gained 30%. Find the cost of the article.  Choose the correct choice from the following answers:  A) 30  B) 40  C) 50  D) 60  E) 70
Let C.P=100   Gain=25%   S.P=125   Supposed C.P=80   Gain=30%   S.P=(130*80)/100= 
<gadget id="calculator">(130*80)/100</gadget>
<output>104</output>
104   60iff=(125-104)= 
<gadget id="calculator">(125-104)</gadget>
<output>21</output>
21   60iff 21 when C.P=100   then 60iff 12.60 when C.P=(100*12.60)/21= 
<gadget id="calculator">(100*12.60)/21</gadget>
<output>60</output>
60   ANSWER:60
<result>D</result>
A man sells an article at a profit of 25%. If he had bought it at 20% less and sold it for Rs.12.60 less, he would have gained 30%. Find the cost of the article.