Only need help with part (e), please show how to solve this step by step.

Janet borrows $50,000 from a bank, to be repaid by level annual installments of capital and interest over fifteen years. The bank charges interest at 10% per year effective. (a) Calculate the amount of the annual repayment (b) What is the amount of interest paid in the eighth year? (c) How much capital is repaid in the eighth year? (d) How much capital is repaid in the ninth year? (e) At the time the tenth repayment is due, Janet makes an additional payment of 50% of the capital outstanding after ten repayments under the original loan schedule. Calculate the revised term of the loan if Janet continues to make the same annual repayments, and find the amount of the final repayment