1.

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?​

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

=24DAYS



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