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

Click button first when a symbol is required. X

Marion and Barbara take 2 hours to clean the house together. If Marion takes 3 hours to clean the house on her own, how long will it take Barbara to clean the house alone?