Question 64
A merchant has 500 kg of sugar, some part of which he sells at 8% profit and rest at 18% profit. He gains 14% on the whole. The quantity sold at 18% profit is:
Solution
He sold X quantity at 8% profit and (500-X) at 18% profit.
Total money received after sale will be,
(1.08)(X)+1.18(500-X)=1.14(500)
1.08X+590-1.18X=570
20=0.1X
X will be 200kg.
Hence, the quantity sold at 18% profit will be 300kg.
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