A trader has 200 kg of sugar, out of which he sells some with 10% profit and the rest with 25% profit. He gains 15% on the whole. Find the quantity of sugar sold at 25% profit?	Choices:  A) 120 kg  B) 96.5 kg  C) 84 kg  D) 67 kg  E) None of these
Explanation:   Let CP of each kg. of sugar = Rs.1.   Cost Price of 200 kg of sugar = Rs.200.   Let quantity of sugar sold with 25% profit be X.   Therefore, (200 – X) kg of sugar sold at a profit of 10%   Then,   (125/100 * X) + 110/100 (200 – X) = 115/100 * 200   125X + 110(200 – X) = 115 * 200   125X + 22000 – 110X = 23000   125X – 110X = 23000 – 22000   15X = 1000   X = 1000/15   X = 66.66 kg   Quantity of sugar that was sold at 25% gain is 66.66 kg   Therefore, option nearby for 66.66 is 67 (d)   ANSWER: 67 kg
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A trader has 200 kg of sugar, out of which he sells some with 10% profit and the rest with 25% profit. He gains 15% on the whole. Find the quantity of sugar sold at 25% profit?