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A and B together can do a piece of work in 12 days whichB and C together can do in 16 days. After A has beenworking at it for 5 days, and B for II days, c takeswe and finishes it alone in 13 days. In now many daysCould each do the work by himself? |
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Answer» Total work =48 unit efficiency of a + B =4_ _ __________(1) efficiency of b+c=3_ _ ____________(2) According to question 5a+7b+13c=48 Now using 1AND 2 equation 5a+7(4-a)+13(a-1)=48 11a=33 a=3,b=1,c=2 Time TAKEN by C=48/2 |
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