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Contec Systems has the opportunity to invest in one of two mutually exclusive machines that will...

Contec Systems has the opportunity to invest in one of two mutually exclusive machines that will produce a product it will need for the foreseeable future. Machine A costs $2.5 million and realizes after-tax inflows of $900,000 per year for 5 years. Machine B costs $3.4 million and realizes after-tax inflows of $800,000 per year for 9 years. Assume that machine prices are not expected to rise because inflation will be offset by cheaper components used in the machines. The cost of capital is 12%.
i. What is the NPV of each machine? Is it correct to make choice on the basis of NPV in this case?   
ii. Compute equivalent annual annuity-EAA for each machine?
iii. Compute payback period of both machine.                             
iv. Which machine should be accepted finally?

Solutions

Expert Solution

Answer:

i) MACHINE A

Year Cash Flows PV @ 12% Present Value
1 900000 0.8929 803610
2 900000 0.7972 717480
3 900000 0.7118 640620
4 900000 0.6355 571950
5 900000 0.5674 510660
3244320
Initial Investment 2500000
NPV 744320

MACHINE B

Year Cash Flows PV @ 12% Present Value
1 800000 0.8929 714320
2 800000 0.7972 637760
3 800000 0.7118 569440
4 800000 0.6355 508400
5 800000 0.5674 453920
6 800000 0.5066 405280
7 800000 0.4523 361840
8 800000 0.4039 323120
9 800000 0.3606 288480
4262560
Initial Investment 3400000
NPV 862560

Based on NPV, Machine B is preferred as it has a higher NPV than Machine A.
NPV is a useful in evaluating projects which have same length. However, for projects having different time lengths, NPV is less preferred.

ii) Equivalent Annual Annuity (EAA) = (r x NPV) / (1 - (1 + r)-n )
where r is the discount rate, n is the number of period

MACHINE A
EAA = (0.12 * 744320) / (1- (1.12)-5 )
EAA = 206481.60

MACHINE B
EAA = (0.12 * 862560) / (1- (1.12)-9 )
EAA = 161884.30

On the basis of EAA, Machine A is preferred since it has a higher EAA.

iii) Payback Period = A + (B/C)

Where,
A is the last period number with a negative cumulative cash flow;
B is the absolute value (i.e. value without negative sign) of cumulative net cash flow at the end of the period A; and
C is the total cash inflow during the period following period A

MACHINE A

Year Cash Flows Cumulative CF
0 -2500000 -2500000
1 900000 -1600000
2 900000 -700000
3 900000 200000
4 900000 1100000
5 900000 2000000


= 2 + (700000/900000) = 2.78 years

MACHINE B

Year Cash Flows Cumulative CF
0 -3400000 -3400000
1 800000 -2600000
2 800000 -1800000
3 800000 -1000000
4 800000 -200000
5 800000 600000
6 800000 1400000
7 800000 2200000
8 800000 3000000
9 800000 3800000

= 4 + (200000/800000) = 4.25 years

Shorter paybacks attract more investments. Therefore, on the basis of payback Machine A is better.

iv) Since, NPV is less preferred for projects with different time lengths, therefore, considering payback period and EAA, Machine A is preferred and Contec systems should invest in Machine A.


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