Question 92

A man purchased 11 booksfor Rs. 100 and sold at the rate of 10 books for Rs. 110. How much percentage of profit or loss he made on a book?

Solution

As per the given question,

The cost price of one book $$=\dfrac{100}{11}$$

The sale price of one book $$=\dfrac{110}{10}$$

Hence the required percentage $$=\dfrac{(11-9.09)\times 100}{9.09}$$

$$=\dfrac{1.91\times 100}{9.09}=21% Profit$$

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