A and B alone cab complete a work in 9days & 18 days respectively. They worked together; however 3days before the completion of the work A left. In how many days was the work completed?
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Answer:
Step-by-step explanation:
Add 3 days work of A which is 3×2=6 units
T.W. =6+18=24
(A+B)'s one day work is 3 units
They will complete in 24/3 = 8 days
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