Granny Li deposited 5000 yuan in the bank, fixed for three years, with an annual interest rate of 3.24%______ Yuan

Granny Li deposited 5000 yuan in the bank, fixed for three years, with an annual interest rate of 3.24%______ Yuan

It's 5000 × 3.24% × 3, = 162 × 3, = 486 yuan. A: after maturity, you can get 486 yuan of interest

Aunt Wang deposited 1000 yuan into the bank, with a monthly interest rate of 0.14%. She paid 20% of the interest tax for three years. Aunt Wang actually paid a few yuan when she was due
T * t help us!
Sisters and brothers

After tax interest = principal × interest rate × term × (1-tax rate)
After tax interest = 1000 × (0.14% × 12) × 3 × (1-20%) = 40.32 yuan
Sum of principal and interest = 1000 + 40.32 = 1040.32 yuan
Aunt Wang actually gets principal and interest and 1040.32 yuan when she matures

Aunt Wang now deposits 5000 yuan into the bank for three years. The annual interest rate is 5.40% (interest tax is ignored). She will get () yuan of interest from the bank after maturity
A. 5000×5.40%×3B. 5000×5.40%C. 5000×540%×3×5%D. 5000+5000×5.40%×3

The interest is expressed as: 5000 × 5.40% × 3

Two years after Aunt Zhang deposited 10000 yuan in the bank, she obtained 10880 yuan of principal and interest in the bank. What's the annual interest rate?

Solution (10880-10000) △ 10000 △ 2 △ 0.8, = 880 △ 10000 △ 2 △ 0.8, = 5.5%; answer: the annual interest rate is 5.5%