The price of the jewel, passing through three hands, rises on the whole by 68%. If the first and the second sellers 20% and 25% profit respectively find the percentage profit earned by the third seller.  Choose the correct choice from the following
A) 20  B) 12  C) 15  D) 25  E) 30
Let the original price of the jewel be $ p and let the profit earned by the third seller be x% Then, (100+x)% of 125% of 120% of P =168% Of P ((100+X)/100*125/100*120/100*P)=(168/100*P)   ==&gt; (100+X)=(168*100*100)/(125*120)= 
<gadget id="calculator">(168*100*100)/(125*120)</gadget>
<output>112</output>
112=&gt;X=12%   Answer 12)
<result>B</result>
The price of the jewel, passing through three hands, rises on the whole by 68%. If the first and the second sellers 20% and 25% profit respectively find the percentage profit earned by the third seller.