Fortune Telling Collection - Comprehensive fortune-telling - A developer sold the house by stages, and Xiaoming bought a new house with a total price of 654.38+0.2 million and a down payment of 400,000 (in the first year).

A developer sold the house by stages, and Xiaoming bought a new house with a total price of 654.38+0.2 million and a down payment of 400,000 (in the first year).

5+80-5(n-2)x5% n stands for the nth year.

(1) In the second year, you need to pay back 5+80x0.5% = 90,000.

(2)5+80-5(n-2)x5% =6.75

5(n-2)= 80+(6.75-5)/5% = 1 15

n=25