A can complete a piece of work in 27 days while B takes 45 days to complete the work. The start working together but A leaves 9 days before the work gets. over.for how many days does B work.
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Answer:
45 days
Step-by-step explanation:
a needs 27 days
b needs 45 days
a+b
=72
days need if they work together
36
a leaves before 9 days
36+9
45
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