SOLUTION: Mrs. Hensen cataloged a group of incoming library books in 8 hours. Mr. Taylor can catalog the same number of books in 4 hours. Mrs. Phillips can catalog them in 6 hours. How long
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Question 996305: Mrs. Hensen cataloged a group of incoming library books in 8 hours. Mr. Taylor can catalog the same number of books in 4 hours. Mrs. Phillips can catalog them in 6 hours. How long would it take if they all worked together?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Add their rates of working:
Call the task:
[ 1 job ]
Mrs. Hensen's rate:
[ 1 job ] / [ 8 hrs ]
Mr. Taylor's rate:
[ 1 job ] / [ 4 hrs ]
Mrs. Phillips' rate:
[ 1 job ] / [ 6 hrs ]
-----------------
Let = their time if they
all work together
----------------
It will take them 1 hr 51 min
if they all work together
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