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5 years, 2 months ago
5 years, 2 months ago
24/7 days
A completes the work in 12 days, so A's 1 day's work = 1/12
Similarly, B completes the work in 16 days, so B's 1 day work = 1/16
(A + B) 's 1 day work = 1/12 + 1/16 = 7/48
So, together they will complete the work in 48/7 days
Time taken to complete half the work = 24/7 days
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