min; A and C together would take 15 min. How long would each take working alone?
6. A and B can do a piece of work in 6 days and 4 days respectively. A started the work; worked at it for 2
days and then was joined by B. Find the total time taken to complete the work.
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A and B can do a piece of work in 6 days and 4 days respectively. A started the work; worked at it for 2 days and then was joined by B. Find the total tome taken to complete the work
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