Solution:
Briggs Excavation Company
Briggs Excavation |
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Equal annual net cash flow: |
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Cash Inflows: |
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Hours of operation |
2,000 |
|
Revenue per hour |
$115 |
|
Revenue per year |
$230,000 |
|
Cash outflows: |
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Hours of operation |
2,000 |
|
Fuel cost per hour |
$50 |
|
labor cost per hour |
$38 |
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Total fuel and labor costs per year |
$88 per hour |
($176,000) |
Annual maintenance cost |
($20,000) |
|
Annual net cash flow |
$34,000 |
Present value of annual net cash flows –
= annual net cash inflows x present value of annuity of $1 at 15% for 5 years
= $34,000 x (P/A, 15%, 5)
= 34,000 x 3.352 = $113,968
Less: initial investment $104,900
Net present value = 113,968 – 104,900 = $9,068
Amount to be invested = (P/A, 15%, 5) x [(number of hours x 115) – (number of hours x 88) – 20,000] = $109,400
$109,400 = 3.352 x [(number of hours x 115) – (number of hours x $88) – 20,000
109,400 = number of hours x $385.50 – number of hours x $295 – 67,040
$176,440 = number of hours x $90.50
Number of hours = 176,440/90.50 = 1,950
Hence, the bulldozer’s operating hours must exceed 1,950 each year so as to justify the investment of $109,400.
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