<PRE><B>Question 1114843</B>
Two computers working together can finish a search in 30 seconds. One of these computers can finish in 50 seconds. How long would it take the second computer to finish the same search if it were working alone?
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Together DATA::
time= 30 seconds/job ; rate = 1/30 job/second
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One computer DATA:
time = 50 seconds/job ; rate = 1/50 job/second
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2nd computere DATA::
time = x seconds/job ; rate = 1/x job/second
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Equation:
rate + rate = together rate
1/50 + 1/x = 1/30
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30x + 50*30 = 50x
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20x = 1500
x = 75 minutes (time of 2nd computer to do the job)
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Cheers,
Stan H.
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