Rational Work Word Problems

For Benny, it takes six hours to clean the attic. However, Mary takes twelve hours to clean the attic. If working together, how long would they take?

• 6

• 4

• 11

• 3

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CCSS.HSA.CED.A.1

Joan can clean the store in five hours. If Dan helps, it takes them four hours. Without help, how long would it take Dan to complete this job ?

• 10

• 25

• 20

• 15

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CCSS.HSA.CED.A.1

Sara takes eleven hours to vacuum the house. It takes Dan twelve hours to complete this job. How long would it take if they worked together?

• 2.54

• 6.43

• 5.74

• 4.32

Tags

CCSS.HSA.CED.A.1

Keith and Melanie were able to reupholster furniture in three hours together. It takes Melanie five hours to do this job alone. Without help, how long would it take Keith to do this job ?

• 5.5

• 6.5

• 7.5

• 8.5

Tags

CCSS.HSA.CED.A.1

Tim and Tom were able to reupholster furniture in four hours together. It takes Tom eleven hours to do this job alone. Without help, how long would it take Tim to do this job ?

• 6.12

• 7.32

• 6.29

• 9.34

Tags

CCSS.HSA.CED.A.1

Anne and Mary are grading papers. Anne can grade 100 papers in 2 hour. Working together they can grade 400 papers in 3 hours. How many papers can Mary grade in 1 Hour?

• 83 papers
• 300 paper
• 40 papers
• 150 papers

Tags

CCSS.HSA.CED.A.1

Frank and John are mowing yards. Frank can mow 2 yards in 45 minutes. Working together they can mow 7 yards in 90 minutes. How long does it take John to mow 1 yard?

• 22.5min
• 45min
• 30min
• 90min

Tags

CCSS.HSA.CED.A.1

Bob and Mike are painting walls. Bob can paint 1 wall in 2 hours. When Mike and Bob work together they can paint 2 walls in 3 hrs. How many hours does it take Mike to point 1 wall?

• 7 hours
• 3 hours
• 2 hours
• 6 hours

Tags

CCSS.HSA.CED.A.1

• 16.92 minutes

• 15 minutes

• 16.41 minutes

• 11.07 minutes

Tags

CCSS.HSA.CED.A.1

• 9.55 hours

• 10.02 hours

• 6.41 hours

• 9.02 hours

Tags

CCSS.HSA.CED.A.1