1, loan 50,000 yuan, interest rate 6.8%. Divided into 36 installments, the principal and interest of each installment shall be *** 1537.33 yuan. Due to the low interest rate, the repayment amount of each installment is relatively stable.

2. According to the equal principal and interest method, the total amount of principal payable in each installment plus interest is 50,000 divided by 36 installments equals 65,438+0,388,888 yuan, plus interest (50,000 times 6.8% divided by 65,438+02 equals 283 33 yuan), so the amount payable in each installment is 65,438+0. The sum of the loan principal and interest that the borrower needs to repay every month is 65,438+0,672 22 yuan, and * * * repays 36 installments, and finally pays off all the principal and interest.