List price of a book is Rs.,100. A dealer sells three such books for Rs., 274.50 after allowing disc

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7.Profit and Loss

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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

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