Mathematics, 30.07.2021 21:10 josephcarriveau

A plumber can do a job in 4 hours. When he and his 2 helpers do the job, they can finish it in 2 hours. If both helpers work at the same rate, how many hours would each helper take to do the job alone?

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A plumber can do a job in 4 hours. When he and his 2 helpers do the job, they can finish it in 2 hou...