A, B, and C can do a piece of work in 36 days, 54 days and 108 days, respectively. They started the work together but A left 9 days after the start of the work and left 3 days before the work was completed. For how many days did C work?
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Answer:
60 days
c worked for
Step-by-step explanation:
total work = 108 units
efficiency of A = 3
" " " B = 2
" " C= 1
they worked together for 9 days
wok done = (3+2+1)×9 = 54units
work left = 54 units +3 days before b left the work so total work = 60
days taken by c = 60 /1 =60
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