Allowing 20% and 15% successive discounts, the selling price of an article becomes Rs. 3060: then the marked price will be = ?

Answer: Option C

$$\begin{array}{rl}& \text{Total discount }\%\\ & \text{ = }\left(20+15-\frac{20\times 15}{100}\right)\%\\ & =35-3\\ & =32\%\\ & =\frac{32\to \text{Discount}}{100\to \text{MRP}}\end{array}$$
MRP → Discount → Selling Price
100 → 32 → 68
68 units → 3060
1 units → 45
⇒ then MRP = 100 units
= 45 × 100 = Rs. 4500