Problem 4-7
Present and Future Value of an Uneven Cash Flow Stream

An investment will pay $100 at the
end of each of the next 3 years, $400 at the end of Year 4, $500 at the end of
Year 5, and $800 at the end of Year 6. If other investments of equal risk earn
9% annually, what is its present value? Round your answer to the nearest cent.
$

What is its future value? Round your
answer to the nearest cent.
$

Problem 4-24
Required Lump-Sum Payment

To complete your last year in
business school and then go through law school, you will need $15,000 per year
for 4 years, starting next year (that is, you will need to withdraw the first
$15,000 one year from today). Your rich uncle offers to put you through school,
and he will deposit in a bank paying 6.51% interest a sum of money that is
sufficient to provide the 4 payments of $15,000 each. His deposit will be made
today.

  1. How large must the deposit be? Round your answer to the
    nearest cent.
    $
  2. How much will be in the account immediately after you
    make the first withdrawal? Round your answer to the nearest cent.
    $

    How much will be in the account immediately after you make the last
    withdrawal? Round your answer to the nearest cent.
    $

Problem 4-15
Effective Rate of Interest

Find the interest rate (or rates of
return) for each of the following situations. Round your answers to two decimal
places.

  1. You borrow $650 and promise to pay back $676 at the end
    of 1 year.
    %
  2. You lend $650 and receive a promise to be paid $676 at
    the end of 1 year.
    %
  3. You borrow $70,000 and promise to pay back $137,648 at
    the end of 8 years.
    %
  4. You borrow $10,000 and promise to make payments of
    $3,550 at the end of each year for 3 years.
    %

4. A $150,000
loan is to be amortized over 7 years, with annual end-of-year payments. Which
of these statements is CORRECT?

a.
The annual payments would be larger if the interest rate were lower.

b.
If the loan were amortized over 10 years rather than 7 years, and if the
interest rate were the same in either case, the first payment would include
more dollars of interest under the 7-year amortization plan.

c.
The proportion of each payment that represents interest as opposed to
repayment of principal would be higher if the interest rate were lower.

d. The
proportion of each payment that represents interest versus repayment of
principal would be higher if the interest rate were higher.

e.
The proportion of interest versus principal repayment would be the same for
each of the 7 payments.

e.
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5. If you deposit money today in an account that pays 5.4% annual interest,
how long will it take to double your money? Round your answer to the nearest
whole.

years

Problem 4-31
Nonannual Compounding

  1. It is now January 1. You plan to make a total of 5
    deposits of $400 each, one every 6 months, with the first payment being
    made today. The bank pays a nominal interest rate of 12% but uses
    semiannual compounding. You plan to leave the money in the bank for 15
    years. How much will be in your account after 15 years? Round your answer
    to the nearest cent.
    $
  2. You must make a payment of $1,981.76 in 10 years. To
    get the money for this payment, you will make 5 equal deposits, beginning
    today and for the following 4 quarters, in a bank that pays a nominal
    interest rate of 6% with quarterly compounding. How large must each of the
    5 payments be? Round your answer to the nearest cent.
    $

Problem 4-30
Loan Amortization

Your company is planning to borrow $2,250,000 on a 3-year, 12%, annual
payment, fully amortized term loan. What fraction of the payment made at the
end of the second year will represent repayment of principal? Round your answer
to two decimal places.

Which of the following statements regarding
a 30-year monthly payment amortized mortgage with a nominal interest rate of
10% is CORRECT?

a.
The monthly payments will increase over time.

b. A larger proportion of
the first monthly payment will be interest, and a smaller proportion will
be principal, than for the last monthly payment.

c.
The total dollar amount of interest being paid off each month gets larger
as the loan approaches maturity.

d.
The amount representing interest in the first payment would be higher
if the nominal interest rate were 7% rather than 10%.

e.
Exactly 10% of the first monthly payment represents interest.

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QYour bank account pays a 6% nominal rate of interest. The
interest is compounded quarterly. Which of the following statements is CORRECT?

a.
The periodic rate of interest is 6% and the effective rate of interest is
also 6%.

b.
The periodic rate of interest is 3% and the effective rate of interest is
6%.

c.
The periodic rate of interest is 1.5% and the effective rate of interest is
3%.

d. The periodic rate of
interest is 1.5% and the effective rate of interest is greater than
6%.

e.
The periodic rate of interest is 6% and the effective rate of interest is
greater than 6%.

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Problem 4-11
Time for a Lump Sum to Double

To the next whole year, how long
will it take $200 to double if it is deposited and earns the following rates?
Round your answers up to the next highest year. [Notes: (1) If you are
using a financial calculator, you can enter the known values and then press the
appropriate key to find the unknown variable. Then, without clearing the TVM
register, you can “override” the variable that changes by simply
entering a new value for it and then pressing the key for the unknown variable
to obtain the second answer. This procedure can be used in parts b and d, and
in many other situations, to see how changes in input variables affect the
output variable.) (2) This problem cannot be solved exactly with some financial
calculators. For example, if you enter PV = -200, PMT = 0, FV = 400, and I = 7
in an HP-12C, and then press the N key, you will get 11 years. The correct
answer is 10.2448 years, which rounds to 10, but the calculator rounds up.
However, the HP-10B gives the correct answer.]

  1. 4.1%.
    year(s)
  2. 10%.
    year(s)
  3. 17.3%.
    year(s)
  4. 100%.
    year(s)

Problem 4-28
PV and Effective Annual Rate

Assume that you inherited some
money. A friend of yours is working as an unpaid intern at a local brokerage firm,
and her boss is selling securities that call for 4 payments of $50 (1 payment
at the end of each of the next 4 years) plus an extra payment of $1,000 at the
end of Year 4. Your friend says she can get you some of these securities at a
cost of $1,050 each. Your money is now invested in a bank that pays an 12%
nominal (quoted) interest rate but with quarterly compounding. You regard the
securities as being just as safe, and as liquid, as your bank deposit, so your
required effective annual rate of return on the securities is the same as that
on your bank deposit. You must calculate the value of the securities to decide
whether they are a good investment. What is their present value to you? Round
your answer to the nearest cent.

$

Problem 4-13
Present Value of an Annuity

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Find the present value of the
following ordinary annuities. Round your answers to the nearest cent. (Notes:
If you are using a financial calculator, you can enter the known values and
then press the appropriate key to find the unknown variable. Then, without
clearing the TVM register, you can “override” the variable that
changes by simply entering a new value for it and then pressing the key for the
unknown variable to obtain the second answer. This procedure can be used in
many situations, to see how changes in input variables affect the output
variable. Also, note that you can leave values in the TVM register, switch to
“BEG,” press FV, and find the FV of the annuity due.)

  1. $400 per year for 10 years at 6%.
    $
  2. $200 per year for 5 years at 3%.
    $
  3. $400 per year for 5 years at 0%.
    $

Now rework parts a, b, and c
assuming that payments are made at the beginning of each year; that is, they
are annuities due.

  1. $400 per year for 10 years at 6%.
  2. $
  3. $200 per year for 5 years at 3%.
    $
  4. $400 per year for 5 years at 0%.
    $

Universal Bank pays 3% interest,
compounded annually, on time deposits. Regional Bank pays 2%, compounded
quarterly.

  1. Based on effective interest rates, in which bank would
    you prefer to deposit your money?

    I. You would choose Regional Bank because its EAR (or EFF%) is
    higher.
    II. You would choose Regional Bank because its nominal interest
    rate is higher.
    III.You are indifferent between the banks and your decision will
    be based upon which one offers you a gift for opening an account.
    IV.You would choose Universal
    Bank because its EAR (or EFF%) is higher.
    V. You would choose Universal Bank because its nominal interest
    rate is higher.

  2. Could your choice of banks be influenced by the fact
    that you might want to withdraw your funds during the year as opposed to
    at the end of the year? In answering this question, assume that funds must
    be left on deposit during the entire compounding period in order for you
    to receive any interest.

    I. If funds must be left on deposit until the end of the
    compounding period (3 months for Universal Bank and 1 year for Regional
    Bank), and you think there is a high probability that you will make a
    withdrawal during the year, then Universal Bank might be preferable.
    II. If funds must be left on
    deposit until the end of the compounding period (1 year for Universal Bank
    and 3 months for Regional Bank), and you think there is a high probability
    that you will make a withdrawal during the year, then Regional Bank might
    be preferable.
    III.If funds must be left on deposit until the end of the
    compounding period (3 months for Universal Bank and 1 year for Regional
    Bank), and you think there is a high probability that you will make a
    withdrawal during the year, then Regional Bank might be preferable.
    IV.If funds must be left on deposit until the end of the
    compounding period (1 year for Universal Bank and 3 months for Regional
    Bank), and you have no intentions of making a withdrawal during the year,
    then Regional Bank might be preferable.
    V. If funds must be left on deposit until the end of the
    compounding period (1 year for Universal Bank and 3 months for Regional
    Bank), and you think there is a high probability that you will make a
    withdrawal during the year, then Universal Bank might be preferable.

Problem 4-6
Future Value: Ordinary Annuity versus Annuity Due

What’s the future value of a 4%,
9-year ordinary annuity that pays $700 each year? Round your answer to the
nearest cent.
$

If this were an annuity due, what
would its future value be? Round your answer to the nearest cent.
$

Q A $50,000 loan is to be amortized
over 7 years, with annual end-of-year payments. Which of these statements is
CORRECT?

a.
The annual payments would be larger if the interest rate were lower.

b.
If the loan were amortized over 10 years rather than 7 years, and if the
interest rate were the same in either case, the first payment would include
more dollars of interest under the 7-year amortization plan.

c.
The proportion of each
payment that represents interest as opposed to repayment of principal would
be lower if the interest rate were lower.

d.
The last payment would have a higher proportion of interest than the first
payment.

e.
The proportion of interest versus principal repayment would be the same for
each of the 7 payments.