1. Solutions to Seatwork/Homework
Work Problems
Solutions to Seatwork/Homework

2. Liza can paint the kitchen in 5 hrs
Liza can paint the kitchen in 5 hrs. David can paint the same kitchen in 3 hrs. If they work together, how long will it take to paint the kitchen?
Rate
Time
Work done
Liza
1/5 t
t/5
David
1/3
t/3

3. Steve and Janet are going to paint the picket fence that surrounds their house. Steve can paint the fence alone in 12 hours. Janet can paint it alone in 9 hours. How long will it take them to paint the fence together?
Rate
Time
Work done
Steve
1/12 t
t/12
Janet
1/9
t/9

4. Rodney and Thomas can build a cabinet together in 12 hours
Rodney and Thomas can build a cabinet together in 12 hours. Rodney can build the cabinet alone in 16 hours. How long will it take Thomas to build the cabinet alone?
Rate
Time
Work done
Rodney
1/16 12
12/16 or 3/4
Thomas
1/x
12/x

5. Two pipes can fill a tank in 9 hours
Two pipes can fill a tank in 9 hours. If the larger pipe fills the tank three times as fast as the smaller one, how long will it take the larger pipe to fill the tank alone?
Rate
Time
Work done
Larger pipe
1/t 9
9/t
Smaller pipe
1/3t
9/3t or 3/t