Error in Preptest 43 Section 4 Question 18 (Logic Games)

eternallearner
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Error in Preptest 43 Section 4 Question 18 (Logic Games)

Postby eternallearner » Wed Mar 03, 2010 4:57 pm

The right answer is (D) Y and Z only. But I think the correct answer could be (C) X, Y, and Z.

I re-read this stem a few times and cannot see why (D) is the right choice.

Thank you for your help!

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FreeGuy
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Re: Error in Preptest 43 Section 4 Question 18 (Logic Games)

Postby FreeGuy » Wed Mar 03, 2010 5:03 pm

the second rules states:

"The falafel truck serves exactly two of the office buildings."

eternallearner
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Re: Error in Preptest 43 Section 4 Question 18 (Logic Games)

Postby eternallearner » Wed Mar 03, 2010 5:12 pm

Yup! So the falafel truck can serve X and Y OR Y and Z. Therefore, the falafel truck can serve X, Y, and Z--not simultaneously, but has the potential to serve all X, Y, and Z.

Why do you rule out X?

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FreeGuy
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Re: Error in Preptest 43 Section 4 Question 18 (Logic Games)

Postby FreeGuy » Wed Mar 03, 2010 5:17 pm

You're misunderstanding the question stem. It's not asking for a complete list of office buildings "any one of which" could be served.

They're just asking for a partial valid hypothetical.

eternallearner
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Re: Error in Preptest 43 Section 4 Question 18 (Logic Games)

Postby eternallearner » Wed Mar 03, 2010 5:19 pm

That hurts!

I see where I have errored.

Thank you so much!

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FreeGuy
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Re: Error in Preptest 43 Section 4 Question 18 (Logic Games)

Postby FreeGuy » Wed Mar 03, 2010 5:21 pm

Anytime, friend.

JasonR
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Re: Error in Preptest 43 Section 4 Question 18 (Logic Games)

Postby JasonR » Wed Mar 03, 2010 9:05 pm

Just a reminder: There are no errors in LG.

eternallearner
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Re: Error in Preptest 43 Section 4 Question 18 (Logic Games)

Postby eternallearner » Wed Mar 03, 2010 10:12 pm

Are there any errors in LR or RC?

If so, what are they? Where can I find the corrections?

Thank you!

skip james
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Re: Error in Preptest 43 Section 4 Question 18 (Logic Games)

Postby skip james » Wed Mar 03, 2010 10:16 pm

eternallearner wrote:Are there any errors in LR or RC?

If so, what are they? Where can I find the corrections?

Thank you!


there are withdrawn questions scattered about. off the top of my head, there is an RC question in the early 50s that was withdrawn.




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