Given,
Price of house = Rs.30000
Depreciating rate = 25% per year
Value of house after 3 years \(= 30000\times({1}+\frac{25}{100})({1}+\frac{25}{100})({1}+\frac{25}{100})\)
\(= 30000\times\frac{5}{4}\times\frac{5}{4}\times\frac{5}{4}\) = Rs. 12656.25