An activated sludge plant cost $75 million when it was built in 1995. The detailed cost breakdown is given below. Determine a weighted index for the construction of a similar plant in 2009.
Cost Element |
Percent |
Index (1995) |
Index (2009) |
Feasibility study and design services |
5 |
65 |
164 |
Labor |
30 |
170 |
226 |
Materials |
40 |
180 |
267 |
Equipments including installation costs |
25 |
105 |
137 |
Correct answer is 217.05
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An activated sludge plant cost $75 million when it was built in 1995. The detailed cost...