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Profit and Loss
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A book vendor sold a book at loss of 10% . Had he sold it for Rs. 108 more, he would have earned a profit of 10% . Find the cost of the book = ?

Answer & Solution
Correct Answer: Option B
Given loss = 10% profit = 10%
Difference of overall profit and loss = 10 - (-10) = 20%
20% of cp = sp
$$\frac{{20}}{{100}} \times {\text{cp = 108}}$$
20 × cp = 108 × 100
cp = $$\frac{{10800}}{{20}}$$
∴ cp = 540
Examveda
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