1. In a certian store, the profit i...
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1. In a certian store, the profit is 320% of the cost. If the cost increases by 25% but the selling price remains constant, approximately what percentage of the selling price is the profit?

JEE/Engineering Exams
Maths
Solution
105
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Let us assume the cost proce be ( x ). Jhen, sellimig price ( =x+frac{320}{10025} x=frac{21 x}{5} ) Now, new wat prive in ( =x+frac{28}{100} x=frac{5 a}{4} ) Qo New Profit ( =frac{21 x}{5}-frac{5 a}{4}=frac{87-25 x}{20}=frac{59 a}{20} ) Now, percutage ( =frac{59 x}{204} times 100 ) ( frac{21 x}{5} ) [ begin{array}{l} =frac{59 x}{89} x 100 =70.28 % end{array} ] So, profit us ( 70.23 % ) of the elling proice.
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