Correct Answer - Option 3 : Rs. 750

**Given:**

Cost price = Rs. 400 + Rs. 110 = Rs. 510

Discount = 15%

Profit = 25%

**Formula used:**

Marked Price(MP) = Selling Price(SP) + Discount

SP = Cost Price(CP) × (100 + profit%)/100

**Calculation:**

According to the question = Rs. 510

SP = 510 × (125/100) = Rs. 637.5

Let marked price be 100%

S.P = 100 - 15 = 85%

85% = 673.5

⇒ 100% = 673.5 × (100/85)

⇒ 100% = Rs. 750

**∴ The marked price will be Rs. 750.**