The price of an article by 30% and then two successive discounts of 10% each are allowed. Ultimately, the price of the article is -

Answer: Option C

Let the original price be Rs. 100
Then, Marked price = Rs. 130
Final price = 90% of 90% of Rs. 130
$$\begin{array}{rl}& \text{ = Rs}\text{.}\left(\frac{90}{100}\times \frac{90}{100}\times 130\right)\\ & =\text{Rs}\text{.105}\text{.30}\end{array}$$
∴ Increase in price = (105.30 - 100)% = 5.3%