moomas5459 moomas5459

14-01-2018
Mathematics

contestada

A person can copy final exams in 30 minutes using a new copy machine. using an old copy machine the same job takes 45 minutes. if the both copy machines are used. how long will it take to copy the final exams

Respuesta :

14-01-2018

I think you would do 45-30 =
15 mins

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