*A* can do a piece of work in 9 days while *B* can do it in 6 days and with the help of *C* they finish the work in 3 days . In how many days *C* can finish the work alone ?
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A can do a work in 6 days and B in 9 days
Part of work done by A in one day =1/6
Part of work done by B in one day=1/9
How many days will both take together to complete the work?
If they work together then part of work finished by both A and B together
= 1/6 + 1/9
= (3 + 2)/18
= 5/18
Therefore, A and B can complete the work in 18/5 days or 3.7 days
18/5 days are equal to 3.7 days or 3 days 14 hours and 24 minutes
Answer A and B can complete the work in 18/5 days or 3.7 days or 3 days 14 hours and 24 minutes
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