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GRE Prep Club Team Member
Joined: 20 Feb 2017
Posts: 2506
Given Kudos: 1055
GPA: 3.39
Two machines, Y and Z, work at constant rates producing identical item
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26 Jul 2022, 01:59
26 Jul 2022, 01:59
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Expert Reply
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Question Stats:
42% (03:20) correct
57% (01:53) wrong based on 7 sessions
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Two machines, Y and Z, work at constant rates producing identical items. Machine Y produces 3 items in the same time Machine Z produces 2 items. If machine Y takes 9 minutes to produce a batch of items, how many minutes does it take for machine Z to produce the same number of items?
A. 6
B. 9
C. 9 1/2
D. 12
E. 13 1/2
A. 6
B. 9
C. 9 1/2
D. 12
E. 13 1/2
Re: Two machines, Y and Z, work at constant rates producing identical item
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27 Jul 2022, 14:04
27 Jul 2022, 14:04
1
Expert Reply
Machine Z is 1.5 times slower than machine Y. So, if machine Y takes 9 minutes to produce a batch of items, then it takes machine Z 9*1.5 = 13.5 minutes to produce the same number of items.
Answer: E.
Answer: E.
gmatclubot
Re: Two machines, Y and Z, work at constant rates producing identical item [#permalink]
27 Jul 2022, 14:04
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