time value of money elementary level finance. present value a little babie duckie plans to buy a...
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Time Value of Money
Elementary level Finance
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Present Value
A little Babie Duckie plans to buy a $225 rotisserie oven to roast itself in 5 years when it grows up. If a bank offers 7.5% annually compounded interest, how much money does the Duckie have to invest now in order to afford the rotisserie oven 5 years later?
This amount is called the Present Value:• The value of the money as of today.
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Future Value
If the little Babie Duckie only has $140 today, and the bank offers 7.5% annually compounded interest. How much money will the little Babie Duckie have after 5 years?
This amount is called the Future Value:• The value of the money at a future time t
years from today.
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Annuity
An Annuity is a series of payments made at specified times.
Example: depositing $100 into a bank with 5% interest every year for 10 years.
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Example: Present Value of an Annuity
A farmer wants to buy a piece of land to rear ducks to roast. The farmer agrees to make annual payments of $2500 for 15 years, with the first payment starting a year from now. If the interest rate is 6%, find the present value of the piece of land.
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Example:Future Value of an annuity
A little Babie Duckie, starting this year, decides to invest in a life insurance to secure its life. The Duckie deposits 50$ at the end of each year for 8 years with an annual interest rate of 5%. Find the future value of this insurance after 8 years.
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Investment
Assume that you are 16 this year, and are planning to retire as a millionaire at 66 by investing a little bit of money at the end of every year in a bank account with 6% annual interest. How much should you invest each year?
What if you wait until 10 years later to start your investment?
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Example
A house is valued at $300,000 today. If the house can be purchased with 30 equal annual payments at the end of each year, at an interest rate of 6%, find the amount of each payment.
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Perpetuity:Infinite Annuity
A perpetuity is an annuity that has no definite end.
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Example: Perpetuity
A retired teacher wants to establish a scholarship fund that pays 1200$ to one graduating senior with high aesthetic sense every year in the future. The interest rate is consistently set to be 6%. How much does the teacher have to donate in order to found the fund?
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Example: Perpetuity
A Cactus has saved $20000. At the beginning of the year, it purchases a perpetuity with annual end-of-year payments. The perpetuity price is based on an annual interest rate of 5%. What are the annual payments for the Cactus’ perpetuity?
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