A pharmaceutical company uses 900 gm in place of 1 kg to sell the drug. Find the actual % profit or loss, when the company sells the product on 10% gain on cost price?
Pick one:
A) 20
B) 25
C) 30
D) 35
E) 40
Selling price of 900gm = 100+10= 
<gadget id="calculator">100+10</gadget>
<output>110</output>
$110   Profit= 110-90= 
<gadget id="calculator">110-90</gadget>
<output>20</output>
$20   % of profit= 20*100/80= 
<gadget id="calculator">20*100/80</gadget>
<output>25</output>
25 %   Answer is 25
<result>B</result>
A pharmaceutical company uses 900 gm in place of 1 kg to sell the drug. Find the actual % profit or loss, when the company sells the product on 10% gain on cost price?