A man buys an article for rs.27.50 and sells it for rs.28.50. find his gain %.
Choose the correct option:
A) 7% B) 4% C) 5% D) 9% E) 8%
cp=rs27.50, sp=rs 28.50   gain=rs(28.50 –27.50)=rs1.10   so gain%={(1.10/27.50)*100= 
<gadget id="calculator">(1.10/27.50)*100</gadget>
<output>4</output>
4%   Ans:4%
<result>B</result>
A man buys an article for rs.27.50 and sells it for rs.28.50. find his gain %.