If the cost price of 10 articles is equal to the selling price of 8 articles, what is the profit percentage?

Explanation

Let CP of 1 article = Re 1. CP of 8 articles = Rs 8. SP of 8 articles = CP of 10 articles = Rs 10. Profit on 8 articles = 10 – 8 = Rs 2. Profit Percentage = (2 / 8) * 100 = 25%.