A person can do a job as fast as his two sons working together. If one – McqOptions

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1.	A person can do a job as fast as his two sons working together. If one son does the job in 6 days and the other in 12 days, how many days does it take the father to do the job?
A.	9 days
B.	3 days
C.	6 days
D.	4 days
Answer» E.

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