A man buys an article for rs.27.50 and sells it for rs.28.50. find his gain %.	Choose the correct choice from the following answers:
A) 4%
B) 5%
C) 3.5%
D) 5.5%
E) 4.5%
sol. 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%   4%nswer is 4%.
<result>A</result>
A man buys an article for rs.27.50 and sells it for rs.28.50. find his gain %.