Question 451900
When Amos and Bert do a certain job, it takes 13 and 19/23 hours.
A + B + 0 = 23/318
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WHen Bert and Clyde do it, it takes 13 and 1/5 hours.
0 + B + C = 5/66
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When Amos and Clyde do it, it takes 17 and 5/23 hours.
A + 0 + C = 23/396
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How long does it take each brother to do it alone?
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Solve the system of three equations to get each person's work rate:
A rate = 0.027325; Then A's time to do the job = 1/0.027325 ~ 36.6 hrs 
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B rate = 0.045002; Then B's time to do the job = 1/0.045002 ~ 22.22 hrs 
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C rate = 0.030756; Then C' time to do the job = 1/0.030756 ~ 32.51 hrs
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Cheers,
Stan H.
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