A stockiest wants to make some profit by selling sugar. He contemplates about various methods. Which of the following would maximize his profit?
i.	Sell sugar at 10% profit.
ii.	Use 900 g of weight instead of 1 kg.
iii.	Mix 10% impurities in sugar and selling sugar at cost price.
iv.	Increase the price by 5% and reduced weights by 5%.	Choose the correct choice from the following.
A) i or ii  B) ii  C) ii, ii and iv  D) Profits are same  E) None of these
Solution: Let the CP of 1 kg of sugar be Rs. 100.   Then, CP of 900g sugar = (100*900)/1000 = Rs. 90   Hence, profit % = [(100-90)/90]*100 = 11.11%.   If he add 10% impurity then his CP for 1 kg = (100*1000)/1100 = Rs. 90.9;   And % profit = [(100-90.9)/90.9]*100 = 10.01%   If he reduces weight by 5 % Then, cost price of 950 g = (100*950)/1000= 
<gadget id="calculator">(100*950)/1000</gadget>
<output>95</output>
Rs 95 and SP= 105;   % profit = [(105-95)/95]*100 = 10.25 %.   Answer: Option ii
<result>B</result>
A stockiest wants to make some profit by selling sugar. He contemplates about various methods. Which of the following would maximize his profit?
i.	Sell sugar at 10% profit.
ii.	Use 900 g of weight instead of 1 kg.
iii.	Mix 10% impurities in sugar and selling sugar at cost price.
iv.	Increase the price by 5% and reduced weights by 5%.