Answer: a. $73,810.88
b. $10,185.18
Explanation:
a. The payments of $11,000 are constant so this can be considered an Annuity.
The cost of the Computer is it's present value which is,
Present Value of Annuity = Annuity Payment * Present Value Interest Factor of Annuity, 11%, 10 periods
= 11,000 * 6.71008 (Payment is made at the end of the year so this is an Ordinary Annuity)
= $73,810.88
b. When an Annuity is instead paid at the beginning of the period it is considered to be an Annuity due.
The formula is the same but for the figures ,
Present Value of Annuity Due = Annuity * Present Value Interest Factor of an Annuity Due, 11% , 10 periods
73,810.88 = Annuity * 7.24689
Annuity = 73,810.88/7.24689
= $10,185.18