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A can do a work in 6 days and B in 9 days. How many days will both take together to complete the work?

A7.5 days

B5.4 days

C3.6 days

D3 days

Answer:

C. 3.6 days

Read Explanation:

A's 1 day work = 1/6 B's 1 day work = 1/9 If both work together, their 1 day work, = (1/6)+(1/9) = 5/18 Total days to be taken by both A and B together to complete the work = 18/5 days = 3.6 days.


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