1. The wheat sold by a grocer contained 10% low quality wheat. What quantity of good quality wheat should be added to 150 kgs of wheat so that the percentage of low quality wheat becomes 5%
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By: anil on 05 May 2019 01.27 am
Let $$x$$ kg of good quality wheat should be added. Acc to ques, => $$frac{10}{100} imes x = frac{5}{100} imes (x + 150)$$ => $$10x = 5x + 750$$ => $$x = frac{750}{5} = 150$$ kg
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