Working at their respective constant rates machine I makes 240 copies in 8 minutes and machine II makes 240 copies

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(#M40151652) GRE Numerical Ability question Work and Time Keep an EYE

Working at their respective constant rates, machine I makes 240 copies in 8 minutes and machine II makes 240 copies in 5 minutes. At these rates, how many more copies does machine II make in 4 minutes than machine I makes in 6 minutes?
(A) 10
(B) 12
(C) 15
(D) 20
(E) 24: Asked In GRE Aashu (9 years ago); Unsolved Read Solution (1); Is this Puzzle helpful? (1) (2) Submit Your Solution Time and Work

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Latest GRE Aptitude Question SOLUTION: Working at their respective constant rates, machine I makes 240 copies in 8 minutes and machine II makes 240 copies in 5 minutes. At these rates, how many more copies does machine