The cost price of 20 articles is the same as the selling price of \(x\) articles. If the profit is 25%, then the value of \(x\) is:

Correct answer: 16

Solution

Let cost price of one article be C. Then cost price of 20 articles = 20C. With 25% profit, selling price of one article = 1.25C. So selling price of x articles = 1.25xC = 20C, giving x = 16.

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