Question
Betty and Kathy take 2 hours to clean the house together. If Betty takes 4 hours to clean the house on her own, how long will it take Kathy to clean the house alone?
3 m

Click button first when a symbol is required. X

Betty and Kathy take 2 hours to clean the house together. If Betty takes 4 hours to clean the house on her own, how long will it take Kathy to clean the house alone?