If 1000 yuan is deposited in the bank, the annual interest rate is 2.25%. After two years, how much is the total principal and interest? (the interest tax is 5%)

If 1000 yuan is deposited in the bank, the annual interest rate is 2.25%. After two years, how much is the total principal and interest? (the interest tax is 5%)

Sum of principal and interest = 1000 + 1000 * 2.25% * 2 * (1-5%) = 1042.75 yuan

In the time deposit of the bank, the deposit period is one year, two years and three years, and the annual interest rates are 4.14%, 4.68% and 5.40% respectively. Now 1000 yuan is deposited in
Among the time deposits in the bank, the deposit period is one year, the annual interest rates of two years and three years are 4.14%, 4.68% and 5.40% respectively. Now 1000 yuan is deposited in the bank. How can I deposit and withdraw to maximize the sum of principal and pre tax interest after three years?

Of course, it is to deposit for three years, and the income is the biggest
1000 yuan, fixed deposit for 3 years, pre tax interest at maturity:
1000 × 5.40% × 3 = 162.00 yuan
If the interest after tax is calculated, it should be calculated as follows:
1000 × 5.40% × 3 × (1-interest tax) = after tax interest

Xiao Ming deposits his lucky money 1000 yuan in the bank for three years with an annual interest rate of 5.40%. How much interest can he get when it matures?

1000 * 5.4% * 3 = 162 yuan