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Engineering Economy - Engineering

Q1:

The alternatives which are standalone solutions for given situations in engineering involve :

A a purchase cost (first cost)

B the anticipated life of the assest

C the yearly costs of maintaining the assest (annual maintenance and operating cost)

D the anticipated resaleable value (salvage value) and the interest return (rate of return)

E All of these

ANS:E - All of these

What are standalone solutions?