A mortgage loan in the amount of $100,000 is made at 6 percent interest for 20 years. Payments are to be monthly in each part of this problem.

What would be the interest portion of the payment scheduled for payment at the end of month 61 for each case (1) through (4) above?

(1) The loan is fully amortizing?

(2) It is partially amortizing

(3) It is a nonamortizing, or interest-only loan?

(4) It is a negative amortizing loan