Determine the best time to change the defender with the challenger

ENGR.ECONOMIC ANALYSIS
14th Edition
ISBN:9780190931919
Author:NEWNAN
Publisher:NEWNAN
Chapter1: Making Economics Decisions
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### Determine the Best Time to Change the Defender with the Challenger

**Defender vs. Challenger Cost Analysis:**

| Year | Defender (Cost) | Challenger (Cost) |
|------|------------------|-------------------|
| TC1  | 7500 EUAC1       | 9000 EUAC1        |
|      | 7500             | 9000              |
| TC2  | 8000 EUAC2       | 8000 EUAC2        |
|      | 7738.095         | 8523.81           |
| TC3  | 8200 EUAC3       | 7000 EUAC3        |
|      | 7877.644         | 8063.444          |
| TC4  | 10500 EUAC4      | 8000 EUAC4        |
|      | 8651.261         | 8258.349          |

**Note:**
- TC stands for Total Cost over years.
- EUAC stands for Equivalent Uniform Annual Cost.

**Select one:**
- ( ) a. At the end of year 2.
- ( ) b. At the end of year 1.
- ( ) c. At the end of year 3.
- ( ) d. At the end of year 4.
- ( ) e. Now.
Transcribed Image Text:### Determine the Best Time to Change the Defender with the Challenger **Defender vs. Challenger Cost Analysis:** | Year | Defender (Cost) | Challenger (Cost) | |------|------------------|-------------------| | TC1 | 7500 EUAC1 | 9000 EUAC1 | | | 7500 | 9000 | | TC2 | 8000 EUAC2 | 8000 EUAC2 | | | 7738.095 | 8523.81 | | TC3 | 8200 EUAC3 | 7000 EUAC3 | | | 7877.644 | 8063.444 | | TC4 | 10500 EUAC4 | 8000 EUAC4 | | | 8651.261 | 8258.349 | **Note:** - TC stands for Total Cost over years. - EUAC stands for Equivalent Uniform Annual Cost. **Select one:** - ( ) a. At the end of year 2. - ( ) b. At the end of year 1. - ( ) c. At the end of year 3. - ( ) d. At the end of year 4. - ( ) e. Now.
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