A merchant has 1000 kg of sugar, part of which he sells at 8% and the remaining at 18% profit. He gains 14% on the whole. Find the quantity of sugar that he sold at 18% profit.

A 400kg

B 560kg

C 600kg

D 640kg

Solution

Correct Answer: Option C

মনে করি ,
18% লাভে বিক্রয়কৃত চিনির পরিমাণ x kg
8% লাভে "       "          "            " (1000-x) "

প্রশ্নমতে ,
x×18% +(1000-x)×8% =1000×14%
বা,(x×18)/100 + (100-x)×8/100 =(1000×14)/100
বা,18x+8000-8x=14000
বা, 18x-8x=14000-8000
বা,10x=6000
x=600 kg

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