Question

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

Please show all work

Answer 1

Weighted index 200 E percentage & Inde&2009 5.1. & 164 & 30%.xaab & 40% x 267 + 257. & 137 21.7.05 the answer to this question