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7.Profit and Loss
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A machine is sold at a profit of $15 \%$. Had it been sold for $Rs\,540$ more $24 \%$ would have been gained. Find the cost price.
A
$4800$
B
$5400$
C
$6000$
D
$6400$
Solution
cost price $=\frac{\text { More gain } \times 100}{\text { Difference in percentage profit }}$
cost price $=\frac{540 \times 100}{24-15}=\frac{540 \times 100}{9}=₹ 6000$
Standard 13
Quantitative Aptitude
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