Mathematics, 08.06.2021 19:20 HarryPotter10

Jennifer can clean the house by herself in 3 hours. Her little brother Andy helps her clean and it takes them 2 hours working together. How long would it have taken Andy to clean the house if he had worked alone?
a. hours
b. 3 hours
c. 6 hours
d. 1 hour

Answers: 2

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