<PRE><B>Question 138739</B>
One carpenter can complete a kitchen in 8 days.  With the help of another carpenter, they can do the job together in 4 days.  How long would it take the second carpenter if he worked alone?
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1st carpenter DATA:
Time = 8 days/job ; Rate = 1/8 job/day
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Together DATA:
Time = 4 days/job ; Rate = 1/4 job/day
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Other carpenter DATA:
Time = x days/job ; Rate = 1/x job/day
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EQUATION:
rate + rate = together rate
1/8 + 1/x = 1/4
1/x = 1/8
x = 8 days for the other carpenter to complete the job.
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Cheers,
Stan H.</PRE>