You borrow $50,000 repayable in monthly installments over 10 years. The nominal interest rate is 12% per

Question:

You borrow $50,000 repayable in monthly installments over 10 years. The nominal interest rate is 12% per annum. After 3 years have passed, the lender increases the interest rate to 13.5% per annum and you are given the choice of either increasing the monthly repayment or extending the term of the loan.
1) What would be the new monthly repayment?
2) What would be the new loan term?