document.write( "Question 563720: If three people working together can clean an office suite in two hours, how long will it take a crew of four people to clean the office? \n" ); document.write( "
Algebra.Com's Answer #365002 by bucky(2189)\"\" \"About 
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Three people clean the office in 2 hours means that it takes 6 person-hours of work to clean the office (3 persons times 2 hours = 6 person-hours).
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\n" ); document.write( "So 4 persons will need to work 6 person-hours to clean the office.
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\n" ); document.write( "To find the number of hours 4 persons need to work to complete 6 person-hours, divide 4 persons into 6 person-hours and you get the answer of 1.5 hours (4 into 6 = 1.5).
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\n" ); document.write( "Or if you prefer, since a half hour is 30 minutes, 1.5 hours is the same as 1 hour and 30 minutes for the 4 persons to completely clean the office.
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\n" ); document.write( "Hope this helps you to understand the problem.
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