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- Standard 13
- Quantitative Aptitude
7.Profit and Loss
medium
List price of a book is $Rs.\,100.$ A dealer sells three such books for $Rs.\, 274.50$ after allowing discount at a certain rate. Find the rate of discount in $\%$
A
$8.16$
B
$8.5$
C
$8.34$
D
$8.33$
Solution
List price/book $=₹ 100$
Selling price/book $=₹ \frac{274.5}{3}$
$=₹ 91.5$
Discount $\%=\frac{100-91.5}{100} \times 100$
$=8.5 \%$
Standard 13
Quantitative Aptitude