Correct Answer - Option 1 : Rs 4000/-

**Given:**

The amount of a certain sum at compound Interest for 2 yr at 5% is Rs 4410

**Formula used:**

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

R = rate, T = time

**Calculation:**

According to the question,

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

⇒ 4410 = Principal(1 + 5/100)^{2}

⇒ Principal = 4410 × 10000/(105 × 105)

⇒ Principal = Rs. 4000

**∴ The sum is Rs. 4000.**