- Rs. 2400
- Rs. 2580
- Rs. 1200
- Rs. 3000

Option 2 : Rs. 2580

**Given: **

Principal = Rs. 8000

Rate of interest = 30%

Time = 2 years

**Formula used: **

Amount = Principal(1 + R/100)^{t}

**Calculation:**

Rate of interest for 6 months = R/2 = 30/2 = 15%

Amount = Principal(1 + R/100)t

⇒ Amount = 8000 × (1 + 15/100)^{2}

⇒ Amount = 8000 × (23/20) × (23/20)

⇒ Amount = 20 × 529

⇒ Amount = Rs. 10580

⇒ Interest = Amount – principal

⇒ Interest = 10580 – 8000 = Rs. 2580

**∴ The simple interest is Rs. 2580 **

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