00:01
In this question, we'll be using the compound interest formula.
00:04
That will be a, which is the amount, which is principal sum plus interest.
00:11
So a is equal to p, which is the principal sum, times 1 plus r.
00:17
R is the interest rate per annum in decimal, divided by n.
00:22
N is the number of times interest is compounded per year, to the power nt.
00:28
And t is the time period in years.
00:30
Now this question will be given that an amount of $16 ,000 is borrowed.
00:36
So that is given the principal sum p is $16 ,000.
00:44
It's borrowed for 9 years, so our t is 9 years, at 4 .5 % compounded annually...