Clean the house

Level pending

5 peoples live in the house.First person cleans the house in 5 minutes.Second person cleans the house in 10 minutes.Third person cleans the house in 15 minutes.Fourth person cleans the house in 30 minutes and fifth person cleans the house in 60 minutes . If 5 peoples work together how long does it take to clean the house?

×

Problem Loading...

Note Loading...

Set Loading...