Correct Answer - Option 1 : Rs. 3500

**Given:**

A, B, and C started a business by investing Rs. 3600, Rs. 4500 and Rs. 4000 respectively.

**Concept used:**

Divide the profit according to investment ratio.

**Calculations:**

The ratio of investment of A, B and C = (3600 × 4 + 6000 × 8) ∶ (4500 × 12) ∶ (4000 × 4 + 3000 × 8)

⇒ (36 + 120) ∶ (45 × 3) ∶ (40 + 60) = 156 ∶ 135 ∶ 100

Required difference \(= Rs. (\frac{135\ -\ 100}{391})\ \times 39100\)

⇒ Rs. 3500

**∴ The required difference is Rs. 3500.**