Question

A and B can complete a work in 9 and 12 days respectively. If they work for a day alternately, starting with A in how many days will the work be completed

Answer 1

Answer:

3-4 days around hope it helps u

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Answer 2

Answer:

hey mate here ur answer Step-by-step explanation

Step-by-step explanation:

If they start working alternately, starting with A, then in each shift(i.e. A works on 1st day and B on 2nd day. So a shift means 2 days), they do 1/9 + 1/12 = 7/36 units of work in 2 days. So in 5 shifts i.e. in 10 days total amount of work done is 5*7/36 = 35/36 units of work.

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