Question
Sabrina and Irene take 4 hours to clean the villa together. If Sabrina takes 5 hours to clean the villa on her own, how long will it take Irene to clean the villa alone?
3 m

Click button first when a symbol is required. X

Sabrina and Irene take 4 hours to clean the villa together. If Sabrina takes 5 hours to clean the villa on her own, how long will it take Irene to clean the villa alone?