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Applied Corporate Finance

IBM Thomas J. Watson Research Center
Course Home Page Giddy's Home Page


Prof. Ian Giddy

E-mail: ian.giddy@nyu.edu Web: www.giddy.org
Course Web site: giddy.org/ibmfinance



Time Value of Money:

Suggested Solutions

Problem 1

a. Current Savings Needed = $ 500,000/1.110 = 192,772 $

b. Annuity Needed = $ 500,000 (APV,10%,10 years) = 31,373 $

Problem 3

Annual Percentage Rate = 8%

Monthly Rate = 8%/12 = 0.67%

Monthly Payment needed for 30 years = $ 200,000 (APV,0.67%,360) = 1,473 $

Problem 5

a. Year-end Annuity Needed to have $ 100 million available in 10 years = 6.58 $

[FV = $ 100, r = 9%, n = 10 years]

b. Year-beginning Annuity Needed to have $ 100 million in 10 years = 6.04 $

Problem 7

Value of Stock = 1.50 (1.06)/ (.13 - .06) = 22.71 $

Problem 9

Expected Rate of Return = (1000/300)^(1/10) - 1 = 12.79%

Problem 11

Annuity given current savings of $ 250,000 and n=25 = 17,738.11 $

Problem 13

PV of deficit reduction can be computed as follows –
 
Year Deficit Reduction PV
1 25.00 23.15
2 30.00 25.72
3 35.00 27.78
4 40.00 29.40
5 45.00 30.63
6 55.00 34.66
7 60.00 35.01
8 65.00 35.12
9 70.00 35.02
10 75.00 34.74
Sum 500.00 $ 311.22 $

The true deficit reduction is $ 311.22 million.

 

 

 

Problem 15

a.
 
Year Nominal PV
0 $5.50 $5.50
1 $4.00 $3.74
2 $4.00 $3.49
3 $4.00 $3.27
4 $4.00 $3.05
5 $7.00 $4.99
$28.50 $24.04  
b. Let the sign up bonus be reduced by X.

Then the cash flow in year 5 will have to be raised by X + 1.5 million,

to get the nominal value of the contract to be equal to $30 million.

Since the present value cannot change,

X - (X+1.5)/1.075 = 0

X (1.075 - 1) = 1.5

X = 1.5/ (1.075 -1) = $3.73 million

The sign up bonus has to be reduced by $3.73 million and the final year's cash flow has to be

increased by $5.23 million, to arrive at a contract with a nominal value of $30 million and a

present value of $24.04 million.

Problem 17

a. Monthly Payments at 10% on current loan = 1,755.14 $

b. Monthly Payments at 9% on refinanced mortgage = 1,609.25 $

Monthly Savings from refinancing = 145.90 $

c. Present Value of Savings at 8% for 60 months = 7,195.56 $

Refinancing Cost = 3% of $ 200,000 = $6,000

d. Annual Savings needed to cover $ 6000 in refinancing cost= 121.66 $

Monthly Payment with Savings = $ 1755.14 - $ 121.66 = 1,633.48 $

Interest Rate at which Monthly Payment is $ 1633.48 = 9.17%

Problem 19

a. Estimated Funds at end of 10 years:

FV of $ 5 million at end of 10th year = 10.79 $ (in millions)

FV of inflows of $ 2 million each year for next 5 years = 17.24 $

- FV of outflows of $ 3 million each year for years 6-10 = 17.60 $

= Funds at end of the 10th year = 10.43 $

b. Perpetuity that can be paid out of these funds = $ 10.43 (.08) = 0.83 $

Problem 21
 
Year Coupon Present Value @ 8%
1 50.00 46.30
2 50.00 42.87
3 50.00 39.69
4 50.00 36.75
5 50.00 34.03
6 60.00 37.81
7 70.00 40.84
8 80.00 43.22
9 90.00 45.02
10 100.00+1000.00 509.511
  $ Sum = 876.05


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