Complete the following problems. You will likely use a spreadsheet for this assignment but you may choose to type up your answers in a Word document. In either case, be sure to show your work.
Problem 5-1: Compound Interest
To what amount will the following SAR investments accumulate?
B) Investment 11,000
C) Investment 20,000
D) Investment 750
Problem 5-2: Present Value
What is the present value of the following future amounts?
B) FV 400
C) FV 1,500
D) FV 2,500
Problem 5-3: Future Value
Sales of a new finance book were 20,000 copies this year and were expected to increase by 15 percent per year. What are expected sales during each of the next 3 years?
DATA Copies 20,000
FV of 1st yr=20,000*1+0.151= 23,000 FV of 2nd yr=23,000*1+0.151= 26,450 FV of 3rd yr=26,450*1+0.151= 30,417.5 Problem 5-4: Present-Value Comparison
Assuming you can earn 9 percent on your money, which of the following offers should you choose? SAR 1200 today; SAR 12,500 in 11 years; or SAR 30,000 in 25 years?
Years Amount PV
A Today 1,200 1,100.92
B 12 12,500 9,856.165
C 25 30,000 3,479.04
Which offer should you choose and why? I would choose offer c, since it requires low initial investment and provides a high future value due to the long holding period. The present value would be worth a large amount in 25 years time due to the time value of money.
Problem 5-5: Compound Annuity
What is the accumulated sum of each of the following streams of payments?
a. SAR 1,500 a year for 8 years compounded annually at 6 percent
b. SAR 1,000 a year for 6 years compounded annually at 12 percent
c. SAR 350 a year for 5 years compounded annually at 5 percent
d. SAR 125 a year for 4 years compounded annually at 4 percent
FV of compounded annuities=PV*(1+i)n-1iSolution
B) Pymt 1,000
C) Pymt 350
D) Pymt 125
Problem 5-6: Compound Interest with Nonannual Periods
a. Calculate the future sum of SAR 7,000, given that the money will be held in the bank for 5 years at an annual interest rate of 6 percent.
b. Recalculate part a. assuming the interest rate is (1) an APR of 6 percent compounded semiannually and (2) an APR of 6 percent compounded bimonthly.
c. Recalculate parts a. and b. for an APR of 12 percent
d. Recalculate part a. using a time horizon of 12 years (the APR is still 6 percent).
e. With respect to the effect of changes in the stated interest rate and holding periods on future sums in parts c. and d., what conclusions do you draw when you compare these figures with the answers found in parts a. and b.?
bimonthly 2 8,075.22
C) Rate 12%
D) Years 12
E) An increase in the annual interest rate results in an increase in the future sums given the same amount of initial investment and period of time.
A reduction in the holding period results in an increase in the future sums when the initial investment and rate of interest are held constant.
Carther, S. (2017). How to Calculate the Value of Annuities. Investopedia. Retrieved 23 February 2017, from http://www.investopedia.com/articles/03/101503.asp
Pournara, C. (2013). Mathematics-for-teaching in pre-service mathematics teacher education: The case of financial mathematics (Doctoral dissertation).
Pournara, C. (2014). Mathematics-for-teaching: insights from the case of annuities: original research. pythagoras, 35(1), 1-12.
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