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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 …

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 …
asked 73.1k views
5 votes
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

asked
User Trickydisco
by
7.4k points

1 Answer

5 votes
I think you would do 45-30 =
15 mins
answered
User Erwin Smith
by
8.1k points
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