If the SI on a certain sum of money at 6 \(\frac{2}{3}\) % per annum for 4 years is ₹5500 less than its principal. Find the S.I. and principal.

₹5000, ₹2200 ₹6000, ₹500 ₹7500, ₹2000 ₹8000, ₹2500

₹7500, ₹2000

\(\frac{P × 20 × 4}{3 × 100}\) = P - 5500 ⇒ \(\frac{11P}{15}\) = 5500 ⇒ P = 7500 S.I. = 7500 - 5500 = 2000