LolitaGushi701 LolitaGushi701

13-03-2014
Mathematics

Answered

Charles can do a job in 1 hour, Bill can do the same job in 2 hours, and Bob can do the job
in 3 hours. How long does it take them to do the job working together?

Answer :

amerigelman amerigelman

13-03-2014

1hr +2hr+3hr is 6 hours job done

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14-03-2014

1+2+3=6 hours
bill Charles and bob

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