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Q. |
Replace an item when________. |
A. | average annual cost for n years becomes equal to current running cost |
B. | next year running cost in more than average cost of nth year |
C. | present years running cost is less than the previous years average cost |
D. | average cost to date is equal to the current maintenance cost |
Answer» A. average annual cost for n years becomes equal to current running cost |
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