Advanced Placement (AP), 07.05.2020 02:04, deanlmartin

Two workers, a trainer and a trainee, working together can do a job in 3 hours. The trainer is 3 times

faster than the trainee to complete the same job. How long will it take the trainee to finish the same

job?

Please explain how you got it.

Answers: 2

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Two workers, a trainer and a trainee, working together can do a job in 3 hours. The trainer is 3 tim...