Joanna buys an article for rs.13.00 and sells it for rs.14.00. Find her gain %. Choose the correct choice from the following.
A) 8.32%
B) 4%
C) 7.69%
D) 16%
E) 5.36%
sol. cp=rs13.00, sp=rs 14.00   gain=rs(14.00 –13.00)=rs1.00   so gain%={(1.00/13.00)*100}=4%   Answer is 7.69%.
<result>C</result>
Joanna buys an article for rs.13.00 and sells it for rs.14.00. Find her gain %.