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A and B together can complete a job in 8 days. Both B and C, working alone can finish the same job in 12 days, A and B commence work on the job, and work for 4 days, where upon A leaves, B continues for 2 more days, and then he leaves too, C now start working, and finish the remaining work?
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Explanation:
A and B work for 4 days they completed
3×4=12 units
work left=24−12=12 units
B’s 2 days work=2×2=4 units
work left=12−4=8units
Now C’s complete the work in
8\2=4 days