1. Five people can finish painting a wall in 5 hours. If only 2 people are
available, how many hours do they have to work to finish the same job?
2. Four equal pumps can fill a tank in 42 minutes. How long will 6 pumps of
the same kind fill the tank?
3. If 8 men can build a house in 90 days, in how many days can 20 men
working under the same conditions as the 8 men build the house?
Five sewers can finish 200 children's dresses in 8 days. How many days wil
it take 10 sewers to finish the same number of children's dresses?
5. If 8 men can do a certain job in 12 days, how many men will be required to
do the same job in 16 days?
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