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OpenStudy (anonymous):

Two people take 16 hours to clean an auditorium. How long would 8 people take to do the job?

OpenStudy (anonymous):

4 hours?

OpenStudy (goformit100):

@southpaw Dont just keep answering the questions directly without explanation

OpenStudy (anonymous):

if 2 people clean the auditorium in 16 hours, we can assume that 8 people will clean 4 times faster (2*4=8). so, 8 people will clean 4 times faster, ergo 16/4 = 4 hours

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