Allowing 20% and 15% successive discounts, the selling price of an article becomes $\text{ ₹ }3,060\text{; }$ then the marked price will be

S.P. of an article= 20% and 15% successive discount

                                              x marked price of an article

$3060=\frac{80}{100}\times \frac{85}{100}\times$ marked price of an article

$\therefore$ Marked of an article $=\frac{3060\times 100\times 100}{80\times 85}=4500$