Work Problems

Jack can paint a house in 3 days, and Richard can paint the same house in 4 days. Working together, how long will it take them to finish the job?

• 1 and 5/7 days

• 1 and 3/7 days

• 2 and 5/7 days

• 2 and 3/7 days

A pool can be filled by one pipe in 30 hours and by a second pipe in 25 hours. How long will it take using both pipes to fill the pool?

• 13 and 7/11 hours

• 14 and 2/11 hours

• 15 hours

• 13 and 2/11 hours

Janet, an experienced shipping clerk, can fill a certain order in 4 hours. Felipe, a new clerk, needs 7 hours to do the same job. Working together, how long will it take them to fill the order?

• 2 and 6/11 hours

• 3 and 3/11 hours

• 2 and 3/11 hours

• 3 and 6/11 hours

Working with your cousin, you can refinish a table in 4 hours. Working alone, your cousin can complete the job in 5 hours. How long would it take you to refinish the table

working alone?

• 20 hours

• 15 hours

• 16 hours

• 10 hours