Based on the number of possible workers and the ones not available to finish the large project, the number of workers that you will need are 7 workers.
The first thing to do is the find the number of workers who are available:
= 30 - 9
= 21 workers
Out of these 21 workers, the proportion who are needed are 1/3 so the number of workers needed is:
= 21 x 1/3
= 7 workers
In conclusion, the number of workers needed to finish the large project is 7 workers.
Find out more on proportions and percentages at https://brainly.com/question/19247356
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