If A can complete a piece of work in 6 days and B can do the same work in 12 days then by working together they can complete in how many days
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Time taken by A to complete the work = 6days.
So, Work done by A in 1 day = 1/6.
Time taken by B to complete the work = 12days.
Work done by B in 1 day = 1/12.
Therefore work done by (A+ B ) in 1 day =(1/6 + 1/ 12) = 2+ 1/12 = 3/12 = 1/4.
So, Total time taken to complete the work = 1 ÷ 1/4 = 4days
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