Discussion

Explanation:

Let the cost price of the article = 100C

Profit = 20%

Selling price of the article = $\frac{120}{100}$ × 100C = 120C

Discount = 10%

$\frac{90}{100}$ × Marked price = 120C

Marked price of the article = $\frac{400}{3}$C

When no discount is provided,

Selling price = $\frac{400}{3}$C

Profit% = $\frac{{\displaystyle \frac{400}{3}}C-100C}{100C}$ × 100

= 33.33%

Hence, the correct answer is Option C

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