00:01
Whenever we see an annuity problems such as this one, where we're making many deposits per year in an account that gains interest, we should think of this equation given in the book.
00:08
A equals p times 1 plus i to the n minus 1 divided by i.
00:15
This is given at the end of the chapter, and it's incredibly useful.
00:18
So what do we have in this situation? well, p is the amount of money that we're paying per payment period.
00:23
In this case, $500 per payment period.
00:27
And each payment period is quarterly, that is, ever.
00:30
Every three months, every quarter of a year.
00:32
Which leads us to i, the interest.
00:36
So we note that this pays 8 % interest...