Civil Engineering - Engineering Economy - Discussion

Discussion :: Engineering Economy - Section 1 (Q.No.20)


If a is the base amount expenditure, b is the increase in the operation cost each year over a period of n years, the total cost of maintenance is :

[A]. a + (n + 1) b
[B]. a + (n - 1) b
[C]. a x (n - 1) b
[D]. a - (n - 1) b

Answer: Option B


No answer description available for this question.

Mahendra Acharya said: (Aug 3, 2019)  
Could anyone please explain me?

Kaushal Gopalvansi said: (Feb 14, 2020)  
It starts from the base period i.e. at t=0 so that the number of the year is (n-1).

And total cost is equal to = base cost (a) + no.of year (n-1) x maintenance per year (b).

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