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10 Nov 2019
Working together, Rick and Juanita can complete a job in 15 hours. It would take Rick 9 hours longer than Juanita to do the job alone. How long would it take Juanita alone?
Working together, Rick and Juanita can complete a job in 15 hours. It would take Rick 9 hours longer than Juanita to do the job alone. How long would it take Juanita alone?
Hubert KochLv2
25 Jun 2019