There Are Four Resources and Four Jobs to Be Done

question 30

Multiple Choice

There are four resources and four jobs to be done. The time required for each resource to do each job is as follows: $$\begin{array} { c } \quad \quad \quad \quad { \text { Job (Hours) } } \\\begin{array} { l c c c c } \text { Resource } & \mathrm { A } & \mathrm { B } & \mathrm { C } & \mathrm { D } \\\hline 1 & 5 & 8 & 7 & 7 \\2 & 4 & 9 & 5 & 9 \\3 & 6 & 9 & 8 & 7 \\4 & 7 & 6 & 6 & 9\end{array}\end{array}$$ What is the optimal assignment of resources to jobs?

• A) 1 to A; 2 to C; 3 to B; 4 to D
• B) 1 to B; 2 to D; 3 to C; 4 to A
• C) 1 to C; 2 to B; 3 to A; 4 to D
• D) 1 to D; 2 to B; 3 to C; 4 to A
• E) 1 to A; 2 to C; 3 to D; 4 to B

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Definitions:

Photochemical Smog

Air pollution created by the reaction of sunlight with pollutants such as nitrogen oxides and volatile organic compounds in the Earth's atmosphere.

Primary Pollutants

Pollutants that are emitted directly from identifiable sources and enter the air or water in a harmful form.

Sulphur Dioxide

A toxic gas with a pungent, irritating smell, produced by burning sulfur in the air. It is used as an industrial pollutant and also occurs naturally in volcanic emissions.

Acid Deposition

A broad term that includes any form of precipitation with acidic components, such as sulfuric or nitric acid that falls to the ground from the atmosphere.