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Person A can complete a job in 6 hours. Person B can complete the same job in 4 hours. Working at the same rate, how many hours will it take both of them to complete the job?

 Mar 4, 2020
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1/6   +   1/4   =  1 / T     Solve for T   the time for two working together.

 

 

 

or 

 

(Tx   T2)   /   (T1 + T2)    = Tcombined

 Mar 4, 2020

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