If 10 persons can do a job in 20 days, then 20 person with twice the efficiency can do the same job in:

If 10 persons can do a job in 20 days, then 20 person with twice the e

1.	If 10 persons can do a job in 20 days, then 20 person with twice the efficiency can do the same job in:
A.	5 days
B.	40 days
C.	10 days
D.	20 days
Answer» B. 40 days

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If 10 persons can do a job in 20 days, then 20 person with twice the efficiency can do the same job in:

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