If 10 men or 20 women or 40 children can do a piece of work in 7 days, then 5 men, 5 women and 5 children together can do half of the work in

If 10 men or 20 women or 40 children can do a piece of work in 7 days,

1.	If 10 men or 20 women or 40 children can do a piece of work in 7 days, then 5 men, 5 women and 5 children together can do half of the work in
A.	6 days
B.	4 days
C.	8 days
D.	5 days
Answer» D. 5 days

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If 10 men or 20 women or 40 children can do a piece of work in 7 days, then 5 men, 5 women and 5 children together can do half of the work in

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