Question
Victoria and Yen take 3 hours to clean the villa together. If Victoria takes 4 hours to clean the villa on her own, how long will it take Yen to clean the villa alone?
3 m

Click button first when a symbol is required. X

Victoria and Yen take 3 hours to clean the villa together. If Victoria takes 4 hours to clean the villa on her own, how long will it take Yen to clean the villa alone?