Question
Ahmad and Valen, together, can clean a living room in 3 hours. If Ahmad is cleaning the living room alone, he can only complete the task in 7 hours. How long will Valen take to clean a living room all by himself? Express your answer in mixed number.
3 m

Click button first when a symbol is required. X

Ahmad and Valen, together, can clean a living room in 3 hours. If Ahmad is cleaning the living room alone, he can only complete the task in 7 hours. How long will Valen take to clean a living room all by himself? Express your answer in mixed number.