Correct Answer - Option 1 : Rs. 6,000

**Given:**

The amount of compound interest = Rs. 6300

Rate = 10%

Time = 2 years

**Concept used:**

C.I. = P {(1 + R/100 )^{T }– 1}

S.I. = (P × R × T)/100

S.I. → Simple interest

P → Principal

T → Time

R → Rate%

A → Amount

**Calculations:**

C.I. = P{(1 + R/100)^{T }– 1}

⇒ 6300 = P{(1 + 10/100)^{2 }– 1}

⇒ 6300 = P × {(11/10) × (11/10) – 1}

⇒ 6300 = P × (21/100)

⇒ P = Rs. 30,000

S.I. = (P × R × T)/100

⇒ (30000 × 10 × 2)/100

⇒ Rs. 6,000

**∴ The simple interest is Rs. 6,000**