You have a $15$ year $10\%$ fully amortized Canadian mortgage. Note the mortgage rate is quoted as apr compounded semi annually and payable monthly.

A$)$ What is the monthly payment if the mortgage amount is $25000$

B$)$ What is the relative outstanding mortgage amount $($in $\%$ from the original mortgage amount$)$ after the $5$th payment is made?

C$)$ What fraction of the $6$th payment made will represent the interest paid?