Correct Answer - Option 1 : Rs. 600

**Given:**

MP of the article = Rs 840

Discount, (D) = 15%

Profit, (P) = 19%

**Formula used:**

Selling price, (SP) = Marked price × (100 – D%)/100

Cost price, (CP) = (Selling price × 100)/(100 + P%)

**Concept used:**

The discount is given on the marked price

**Calculation:**

SP = Marked price × (100 – D%)/100

⇒ 840 × (100 - 15)/100

⇒ 840 × (85)/100

⇒ 714

Now, CP = (Selling price × 100)/(100 + P%)

⇒ (714 × 100)/(100 + 19)

⇒ (714 × 100)/(119)

⇒ 600

**∴ The cost price of the article is Rs 600**