winner9459
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It would be really appreciated if some one can help me solve this problem. I converted the values into NPV, taking into account the difference in main. cost after 15 years.
I arrived at at a total of $261,266.36 for the NPV and divided it by 25 to get the annual costs. But I don't think the last step is the one needed to be done here. Can someone throw some light on it.
Thanks.
![Engg._economics_problem.GIF Engg._economics_problem.GIF](https://cdn.imagearchive.com/engineerboards/data/attachments/0/540-8f7a77ce78962856c934b0a2f43a7de7.jpg)
I arrived at at a total of $261,266.36 for the NPV and divided it by 25 to get the annual costs. But I don't think the last step is the one needed to be done here. Can someone throw some light on it.
Thanks.
![Engg._economics_problem.GIF Engg._economics_problem.GIF](https://cdn.imagearchive.com/engineerboards/data/attachments/0/540-8f7a77ce78962856c934b0a2f43a7de7.jpg)