Asked by Anonymous

Ten people can paint 60 houses in 120 days, so five people can paint 30 houses in:
Answered by ~christina~

everything is halved so 120/2= 60 days

Answered by stapel
The sixty houses take (10 men)(120 days) = 1200 man-days to complete. Then one house would take (1200 man-days) / (60 houses) = 20 man-days / house.

How many man-days are required for thirty houses?

If those man-days are divided amongst five people, how many days must each person spend?
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