A shopkeeper allows a rebate of $12\%$ on the marked price of an article such that the selling price is $\text{Rs. }1320$. Find the marked price of the article.

Let the Marked Price ($MP$) of the article be $\text{Rs. }M$.
The discount allowed is $12\%$.

The relation between Selling Price ($SP$) and Marked Price ($MP$) is:

$$SP=MP\times \left(1-\frac{\text{Discount}\%}{100}\right)$$

Given, $SP=\text{Rs. }1320$:

$$1320=M\times \left(1-\frac{12}{100}\right)$$

$$1320=M\times \frac{88}{100}$$

Solving for $M$:

$$M=\frac{1320\times 100}{88}$$

$$M=\frac{120\times 100}{8}=15\times 100=1500$$

Thus, the marked price of the article is $\text{Rs. }1500$.