In: Economics
You are considering a hydraulic excavator. This machine will have an estimated service life of 10 years, with a salvage value of 10% of the investment cost. Its expected savings from annual operating and maintenance costs are estimated to be SR 70,000. To expect a 15% rate of return on investment, what would be the maximum amount that you are willing to pay for the machine: (Choose the closest answer)
a) SR 498,145
b) SR 320,104
c) SR 250,417
d) SR 475,139
e) SR 360,218
The life span of the machine = 10 years
Salvage value = 10% of investment cost
Annual Cash Savings = SR 70000
Interest rate = 15%
Let the Present worth of the machine = x
SR x would be the maximum amount that one would be willing to pay for the machine.
It shall be noted that the present worth is the sum of the PV of net cash inflow
The PV of net cash inflow = Net Cash Inflow/(1+15%)^n
where,
n = nth year
Hence, the present worth of the machine is:
Year | Cash Savings | Salvage Value | Net Cash Inflow | PV of Net Cash Inflow |
0 | ||||
1 | 70000 | 70000 | 60869.56522 | |
2 | 70000 | 70000 | 52930.05671 | |
3 | 70000 | 70000 | 46026.13627 | |
4 | 70000 | 70000 | 40022.72719 | |
5 | 70000 | 70000 | 34802.37147 | |
6 | 70000 | 70000 | 30262.93171 | |
7 | 70000 | 70000 | 26315.59279 | |
8 | 70000 | 70000 | 22883.12417 | |
9 | 70000 | 70000 | 19898.36884 | |
10 | 70000 | 0.10x | 70000 + 0.10x | 17302.9294285306 + 0.10x/(1+15%)^10 |
This means,
x = 334010.9 + 17302.9294285306 + 0.10x/(1+15%)^10
x = 351313.8 + 0.247185*(0.10x)
x = 0.0247185x + 351313.8
x = 360217.8
x ~ 360218
Hence, the present worth of the machine is SR 360218, the maximum amount that one would be willing to pay for the machine.
Hence, the correct answer is e) SR 360,218