document.write( "Question 512647: A three-person maintenance crew could clean a certain building in 4 h, whereas a four-person crew could do the job in 3 h. If one worker of thecrew was an hour late, how long did the job? (Answer in decimal hours)
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Algebra.Com's Answer #342690 by solver91311(24713) $\"\"$ $\"About$

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\n" ); document.write( "\n" ); document.write( "If it takes the 3-person crew 4 hours to do the whole job, then they can complete

of the job in one hour. So when the 4th guy shows up, the now 4 person crew has

of the job remaining. But a 4 person crew can do

of the job per hour. So the question becomes: \"How many

s are there in

?\" Divide. The 4-person crew takes 2.25 hours to complete.\r
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\n" ); document.write( "\n" ); document.write( "John
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\n" ); document.write( "My calculator said it, I believe it, that settles it
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$\"The$

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