In: Finance
Semiannual payments=Loan*(rate/2)/(1-1/(1+rate/2)^(2*n))=300000*(10%/2)/(1-1/(1+10%/2)^(2*8))=27680.9723933
Loan outstanding after x years=Loan*(1+rate/2)^(2*x)-Semiannual payments/(rate/2)*((1+rate/2)^(2*x)-1)=300000*(1+10%/2)^(2*5)-27680.9723933/(10%/2)*((1+10%/2)^(2*5)-1)=140500.0919908