QUESTION 3
For the below ME alternatives, which machine should be selected based on the AW analysis. MARR=10%
Machine A | Machine B | Machine C | ||
---|---|---|---|---|
First cost, $ | 26,538 | 30000 | 10000 | |
Annual cost, $/year | 8,060 | 6,000 | 4,000 | |
Salvage value, $ | 4,000 | 5,000 | 1,000 | |
Life, years | 3 | 6 | 2 |
Answer the below questions:
A- AW for machine A=
QUESTION 4
For the below ME alternatives, which machine should be selected based on the AW analysis. MARR=10%
Machine A | Machine B | Machine C | |||
---|---|---|---|---|---|
First cost, $ | 15000 | 21,667 | 10000 | ||
Annual cost, $/year | 8,870 | 6,000 | 4,000 | ||
Salvage value, $ | 4,000 | 5,000 | 1,000 | ||
Life, years | 3 | 6 | 2 |
Answer the below questions:
B- AW for machine B=
3)
Annual worth = Net present worth
Capital recovery factor
Net present worth of machine A = $ 43576.76784
Annual worth of machine A = $ 43576.76784
( A/P, 10%, 3 years)
( A/P, 10%, 3 years) = Capital recovery factor
Annual worth of machine A = $ 43576.76784
0.4021
Annual worth of machine A = $ 17522.22
Net present worth machine B = $ 53309.2
Annual worth of machine B = $ 53309.2
( A/P, 10%, 6 years)
Annual worth of machine B = $ 53309.2
0.2296
Annual worth of machine B = $ 12239.79
Net present worth of machine C = $ 16115.7
Annual worth of machine C = $ 16115.7
( A/P, 10%, 2 years)
Annual worth of machine C = $ 16115.7
0.5762
Annual worth of machine C = $ 9285.87
Based on the annual worth analysis, machine C must be selected because it has the lowest annual worth of costs compared to machine A and machine B.
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4)
Annual worth = Net present worth
Capital recovery factor
Net present worth of machine A = $ 34053.12
Annual worth = $ 34053.12
( A/P, 10%, 3 years)
Annual worth machine A = $
34053.12
0.4021 = $ 13692.76
Net present worth of machine B = $ 44976.2
Annual worth machine B = $ 44976.2
0.2296
Annual worth machine B = $ 10326.53
Annual worth of machine C = $ 16115.7
( A/P, 10%, 2 years)
Annual worth of machine C = $ 16115.7
0.5762
Annual worth of machine C = $ 9285.87
Based on the annual worth analysis, machine C must be selected because it has the lowest annual worth of costs compared to machine A and machine B.
SOLUTION :
Q4 :
r = MARR = 10% = 0.1
=> (1 + r) = 1.1
PV of costs of Machine A :
= 26538 + 8060/ 1.1 + 8060/1.1^2 + 8060/1.1^3 - 4000/1.1^3
= 43576.77 ($)
PV of costs of Machine B :
= 30000 + 6000 (1.1^6 - 1)/(0.1*1.1^6) - 5000/1.1^6
= 53309.19 ($)
PV of costs of Machine C :
= 10000 + 4000/1.1 + 4000/1.1^2 - 1000/1.1^2
= 16115.70 ($)
Therefore, as per PV of costs , Machine C has lowest cost. So Machine C should be selected.
(ANSWER)
Q3 :
r = MARR = 10% = 0.1
=> (1 + r) = 1.1
PV of costs of Machine A :
= 15000 + 8870/ 1.1 + 8870/1.1^2 + 8870/1.1^3 - 4000/1.1^3
= 34053.12 ($)
PV of costs of Machine B :
= 21667 + 6000 (1.1^6 - 1)/(0.1*1.1^6) - 5000/1.1^6
= 44976.19 ($)
PV of costs of Machine C :
= 10000 + 4000/1.1 + 4000/1.1^2 - 1000/1.1^2
= 16115.70 ($)
Therefore, as per PV of costs , Machine C has lowest cost. So Machine C should be selected.
(ANSWER)
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