Kristy

It takes one team 9 days less than another team to paint a house. If the teams work together, it takes them 20 days to paint the house. How long will it take each team to paint the house working alone?

Painters Ali and Jason, working together, can paint a house in 12 hours. If Jason works twice as fast as Ali, how long would it take Ali to do the job alone?

Ben can wash a car in 2 hours while his younger brother James can do it in 3 hours. How longwill it take to wash the car if they work together?

You can design a Web site in 15 hours. Your friend can design the same site in 10 hours. How long will it take to design the Web site if you both work together?

Jim drove 288 miles in 6 hours. If he can keep the same pace, how long will it take him to drive 624 miles?

Printer A can print Helen's class project in 18 minutes. Printer B can print the project in 30 minutes. If the two printers work together, how long would they take to print out the project?

Kevin can mow his grandfather's lawn in 4 hours, while his younger cousin Patrick can mow the lawn in 6 hours. How long would it take them to mow the lawn if they worked together?

Jean typically takes 2 less hours than Donald to assemble a bicycle if each works alone. Jean and Donald worked together to assemble a bicycle for 1 hour, and then Donald finished the job without Jean after an additional 1 hour. How long would it have taken Donald to assemble the bicycle alone? Do not include the units in your answer.

Daria can week the garden in 7 hours, while her mother can do it in 3 hours. How long will it take to two of them to work together?