SOLUTION: one technician can wire a security alarm in 4 h, whereas it takes 6 hr for a second technician to do the same job. after working alone for 2 h, the first technician quit. how long
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Question 446855: one technician can wire a security alarm in 4 h, whereas it takes 6 hr for a second technician to do the same job. after working alone for 2 h, the first technician quit. how long will it take the second technician to complete the wiring? Answer by robertb(5830) (Show Source):
