SOLUTION: Ten people can paint 60 houses in 120 days, so five people can paint 30 houses in how many days ?

Algebra ->  Rate-of-work-word-problems -> SOLUTION: Ten people can paint 60 houses in 120 days, so five people can paint 30 houses in how many days ?       Log On


   

Question 1390: Ten people can paint 60 houses in 120 days, so five people can paint 30 houses
in how many days ?
Answer by usyim88hk(158) About Me  (Show Source):
You can put this solution on YOUR website!
Ten people can paint 60 houses in 120 days so five people can paint 60 houses in 240 days because it takes double time to finish the job if there are half of the people. So if they only paint 30 houses, it will took them 120 days because it it takes 240 days to paint 60 houses and now we divide them by 2 to get 30 houses and 120 days.
-----------------------
Answer: 120 days