SOLUTION: A hotel has 120 rooms. It takes 6 cleaners 4 hours to clean them all. How many cleaners would it take to clean all the rooms in 3 hours? Thanks:)

Question 741242: A hotel has 120 rooms.
It takes 6 cleaners 4 hours to clean them all.
How many cleaners would it take to clean all the rooms in 3 hours?
Thanks:)
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
The problem only talks about cleaning 120
rooms, so that can be called 1 job
So, I can say:
6 cleaners do 1 job in 4 hrs
-----------------------
1/3 the number of cleaners will take 3 times as long
to do the job, so
2 cleaners can do 1 job in 12 hrs
----------------------------
4 times that number of cleaners will take 1/4 that time
to do 1 job, so
8 cleaners can clean 120 rooms ( 1 job ) in 3 hrs

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