Correct Answer: INR 3,310

Solution : Given:
Principal = INR 10,000
The rate compounded half yearly, so the rate will be $\frac{20}{2}=10$%
Time will be 1.5 × 2 = 3
$\text{Total Amount}=\text{Principal}×(1+\frac{\text{Rate}}{100})^{\text{Time}}$
⇒ Compound interest = $10000(1+\frac{10}{100})^3-10000$
⇒ Compound interest = $10000[(\frac{11}{10})^3-1]$
⇒ Compound interest = $10000[(\frac{1331-1000}{1000})]$
⇒ Compound interest = $10000[(\frac{331}{1000})]$
⇒ Compound interest = $3310$
Hence, the correct answer is INR 3,310.