- Rs. 4040
- Rs. 4800
- Rs. 4000
- Rs. 4840
- Rs. 4900

Option 4 : Rs. 4840

**Given:**

Amount after 3 years = Rs. 1440

Rate of interest = 12%

Amount invested after 2 years at 10% ci annually.

**Formula used:**

SI = PRT / 100

A = P × [1 + (R / 100)]^{T}

Where , A = Final Amount

P = Principal

R = Rate of interest

T = Time period

**Calculation:**

1440 = (P × 12 × 3) / 100

⇒ P = Rs. 4000

Now, CI = 4000(1 + (10/100)]^{2}

⇒ Rs. 4000 × (1.10)^{2}

⇒ 4000 × 1.21

⇒ Rs. 4840

**∴ Amount obtained on the same sum is Rs. 4840**

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