The simple interest on a certain sum at the rate of 16.25% p.a. for 4 years is Rs.12600 less than principal. Find the principal.

37800 36000 23400 40000

36000

\(\frac{P\;×\;16.25\;×\;4}{100}\) = P - 12600 ⇒ \(\frac{35P}{100}\) = 12600 ⇒ P = 36000