Mr. Smith is purchasing a $ 170000 house. The down payment is 20 % of the price of the house.

He is given the choice of two mortgages:

a) a 20-year mortgage at a rate of 10 %.

Find

(i) the monthly payment: $__________

(ii) the total amount of interest paid: $____________

b) a 15-year mortgage at a rate of 10 %.

Find

(i) The monthly payment: $__________

(ii) the total amount of interest paid: $___________