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M05 #23

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Senior Manager
Senior Manager
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Joined: 11 Dec 2008
Posts: 476

Kudos [?]: 250 [1], given: 12

Location: United States
GMAT 1: 760 Q49 V44
GPA: 3.9
M05 #23 [#permalink]

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New post 23 Jul 2009, 08:10
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This has to be the most confusing GMAT question I've ever encountered. I think the question is worded poorly because I can't comprehend what it means, even after reading the question multiple times and the solution multiple times. If someone could chime in, I'd appreciate it.

A machine consisting of 3 connected wheels is mixing concrete. The engine is running at a speed of 60 rpm and the mixer is mixing at a rate of 8 rpm. If the radius of the smaller (drive) wheel is 2 inches, what is the diameter of the mixing wheel?

a) 12
b) 15
c) 25
d) 30
e) 32

Out of the 3 wheels, which is the "mixing wheel"? Is the "mixer" a part of the machine or is it its own separate wheel? What does the engine have to do with this? :roll:

Kudos [?]: 250 [1], given: 12

CIO
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Joined: 02 Oct 2007
Posts: 1218

Kudos [?]: 978 [0], given: 334

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Re: M05 #23 [#permalink]

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New post 23 Jul 2009, 08:19
Thank you for the report. We'll need to edit the wording a bit. I guess there are only two wheels there :). +1
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Kudos [?]: 978 [0], given: 334

Senior Manager
Senior Manager
User avatar
Joined: 11 Dec 2008
Posts: 476

Kudos [?]: 250 [0], given: 12

Location: United States
GMAT 1: 760 Q49 V44
GPA: 3.9
Re: M05 #23 [#permalink]

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New post 23 Jul 2009, 08:28
Haha. Good to know I wasn't going crazy for no reason then 8-)

Kudos [?]: 250 [0], given: 12

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Joined: 04 Dec 2002
Posts: 15572

Kudos [?]: 28479 [0], given: 5106

Location: United States (WA)
GMAT 1: 750 Q49 V42
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Re: M05 #23 [#permalink]

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New post 23 Jul 2009, 11:13
bipolarbear wrote:
Haha. Good to know I wasn't going crazy for no reason then 8-)


Now, this we cannot be sure about :lol:
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Kudos [?]: 28479 [0], given: 5106

Re: M05 #23   [#permalink] 23 Jul 2009, 11:13
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