Mathematics
22.02.2023 15:25
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Consider a standard mortgage (360 months) with monthly payments and a nominal rate

Consider a standard mortgage (360 months) with monthly payments and a nominal rate of 6.70%. what portion of the payments during the first 29 months goes toward principal?
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vtrvfrfvrvfvnkjrf
4,4(53 marks)

P=principal, n=360 months, i=0.067/12 monthly

The equal monthly payments are:

A=P\frac{i*(1+i)^n}{(1+i)^n-1}

=P\frac{0.067/12*(1+0.067/12)^{360}}{(1+0.067/12)^{360}-1}

=0.0064527798P

Future value of principal after 29 months

F=P(1+i)^29=P(1+0.067/12)^29=1.1752328813 P

Future value of payments after 29 months

F29=A\frac{(1+i)^n-1}{i}

=A\frac{(1+0.067/12)^{29}-1}{0.067/12}

=0.2025204525P

Amount owing after 29 months

=1.1752328813 P - 0.2025204525P

=0.9727124288P

Amount of principal repaid

= P-0.9727124288P

= 0.0272875712P

Portion of payment towards capital (current dollars)

= 0.0272875712P / (29A)

= 0.0272875712/0.1871306136

= 0.14582, or 14.6%

preciadogabriel40
preciadogabriel40
5,0(8 marks)
P of both yellow =  ( 5/ 12 ) * ( 4/11)
 = 5/33

hope it helped

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