A man buy a book in Rs50 & sale it Rs50. What is the rate of profit ???
Choose the correct choice from the following options.
A) 10%	B) 0%	C) 30%	D) 25%	E) 28%
cp=50   sp=50   profit=50-50= 
<gadget id="calculator">50-50</gadget>
<output>0</output>
0   %=0/50*100= 
<gadget id="calculator">0/50*100</gadget>
<output>0</output>
0%   ANSWER:0%
<result>B</result>
A man buy a book in Rs50 & sale it Rs50. What is the rate of profit ???