Explanation:

- Initial Investment at Simple Interest:

- Principal = Rs. 8000

- Rate = 12.5%

- Time = 3 years

- Calculate Simple Interest:

- Simple Interest = Principal × Rate × Time / 100

- Simple Interest = 8000 × 12.5 × 3 / 100 = Rs. 3000

- Total Amount after Simple Interest:

- Total = Principal + Simple Interest = 8000 + 3000 = Rs. 11000

- Reinvested at Compound Interest:

- New Principal = Rs. 11000

- Rate = 20%

- Time = 3 years

- Calculate Compound Interest Amount:

- Total Amount = New Principal × (1 + Rate/100)^Time

- Total Amount = 11000 × (1 + 20/100)^3

- Total Amount = 11000 × 1.2^3

- Total Amount = 11000 × 1.728

- Total Amount = Rs. 19008

- Correct Answer:

- Option 2: Rs. 19008

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