Using proportions, it is found that the average waste produced by each plant on a monthly basis is of 0.8 tons per month.
<h3>What is a proportion?</h3>
A proportion is a fraction of a total amount, and the measures are related using a rule of three.
In this problem, there is a period of 60 x 12 = 720 months, with 104 plants, and 60,000 tons of waste were produced, hence the average is given by:
A = 60000/(720 x 104) = 0.8 tons per month.
More can be learned about proportions at brainly.com/question/24372153
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