The selling price of 20 articles is equal to the cost price of 22 articles. The gain percentage is
Let cost price of 1 article = 1 rupee
Then, cost price of 20 articles = 20 rupees
Given, selling price of 20 articles = Cost price of 22 articles (or) 22 rupees
$$\therefore$$ Profit percentage = $$\frac{selling\ price\ -\ cost\ price}{cost price} \times 100$$ %
= $$\frac{22 - 20}{20} \times 100$$ % (or) $$\frac{200}{20}$$ %
= 10 %
Hence, option C is the correct answer.
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