SOLUTION: how long will it take 18 workers to complete a task, given that it take 9 days for 8 workers to complete the same task?

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Question 534022: how long will it take 18 workers to complete a task, given that it take 9 days for 8 workers to complete the same task?
Answer by boilpoil(127) About Me  (Show Source):
You can put this solution on YOUR website!
Let x be the days needed to complete the task

9(8)=18x
72=18x
x=4(days)