Question

What is the measure of efficiency?​

Answer 1

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Efficiency is often measured as the ratio of useful output to total input, which can be expressed with the mathematical formula r = P / C, where P is the amount of useful output ("product") produced per the amount C ("cost") of resources consumed.

Answer 2

Answer:

Efficiency is often measured as the ratio of useful output to total input, which can be expressed with the mathematical formula r=P/C, where P is the amount of useful output ("product") produced per the amount C ("cost") of resources consumed.

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