The price of a consumer good increased by pp% during 20122012 and decreased by 1212% during 20132013. If no other change took place in the price of the good and the price of the good at the end of 20132013 was 1010% higher than the price at the beginning of 20122012, what was the value of pp? Choose the correct choice from the following options.
A) −2%  B) 2%  C) 22%  D) 25%  E) Cannot be determined
As per question=&gt; Price was simple 10 percent greater   Hence x[1+10/100] must be the final price.   Equating the two we get   =&gt; x[110/100]=x[1+p/100][88/100]   =&gt; 44p+4400=5500   =&gt; 44p=1100   =&gt; p=1100/44=&gt; 100/4= 
<gadget id="calculator">100/4</gadget>
<output>25</output>
&gt; 25.   So p must be 25   ANSWER:25%
<result>D</result>
The price of a consumer good increased by pp% during 20122012 and decreased by 1212% during 20132013. If no other change took place in the price of the good and the price of the good at the end of 20132013 was 1010% higher than the price at the beginning of 20122012, what was the value of pp?