Q. A certain sum becomes ₹8100 in 3 years at 12% simple interest. What is the principal?
✅ Correct Answer: (B)
₹7200
Explanation: Amount = P(1 + RT/100) → 8100 = P(1 + 0.36) → P = 8100 / 1.36 = 7200.
Explanation by: Mr. Dubey
Amount = P(1 + RT/100) → 8100 = P(1 + 0.36) → P = 8100 / 1.36 = 7200.