A dishonest dealer claims to sell a product at its cost price. He uses a counterfeit weight which is 20% less than the real weight. Further greed overtook him and he added 25% impurities to the product. Find the net profit percentage of the dealer?
Pick one
A) 44%	B) 40%	C) 50%	D) 56.25%	E) 36.25%
The dealer uses weight which is 20% less than the real weight. or (1- 1/5) or 4/5 of real weight.   It means that he is selling $4 worth of product for $5.   The dealer then further added 25% impurities to the product.   It means that he is selling $5 worth of product for $6.25.   So his profit is $6.25-$4 = $2.25   and his profit percent is   (2.25/4)*100 6.25- 4= 
<gadget id="calculator">6.25- 4</gadget>
<output>2.25</output>
$2.25   and his profit percent is    (2.25/4)*100= 
<gadget id="calculator"> (2.25/4)*100</gadget>
<output>56.25</output>
56.25%   Answer:- 56.25%
<result>D</result>
A dishonest dealer claims to sell a product at its cost price. He uses a counterfeit weight which is 20% less than the real weight. Further greed overtook him and he added 25% impurities to the product. Find the net profit percentage of the dealer?