1, the deposit that benefits for five years at most is 6 * (1+3.6%) 50 = 35.1672995 (ten thousand yuan).

2. Earn at least 6 * (1+2.25%) 50 =18.252783 (ten thousand yuan) a year.

But you have to pay interest tax!

Such a simple question, you think so profound. My method is based on the interest rate: in the first year, the interest rate with interest is 6 * (1+2.25%); Second year multiplied by (1+2.25%); Once a year, this is interest. Fifty years is fifty power! In addition, if you deposit it once every five years, the interest rate is 3.6%. It means that there is 3.6% interest every year, which cannot be understood as 3.6% interest after five years.