A can do a piece of work in 2/3 of a certain work in 12 days and B can do 1/6 of the same work in 4 days. In how many days will they together complete the work?
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A's 1-day work = 2/3/16
= 2/48
= 1/4.
B's 1-day work = 1/4/3
= 1/12.
(A+B)'s one day work = 1/24 + 1/12
= 3/24
= 1/8.
A and B together can complete work in 8 days.
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