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A construction equipment for Tech Builders Inc has a first cost of $25,000 and the following salvage values and annual operating costs: t s(t) Op.

A construction equipment for Tech Builders Inc has a first cost of $25,000 and the following salvage values and annual operating costs:

t s(t) Op. Cost (t)
1 $ 22000 $ 10000
2 21500 10500
3 20000 11000
4 19500 11500
5 10000 12000
6 0 12500

Use a MARR of 10% and determine the EAC of keeping the equipment for all possible years and determine the optimal economic life of the equipment.

Hint: EAC at year 3 = 14,479.

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