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For Juanita to get to the zoo she must take either the number 12 bus

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For Juanita to get to the zoo she must take either the number 12 bus  [#permalink]

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New post 10 Feb 2020, 02:24
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Question Stats:

86% (01:05) correct 14% (01:14) wrong based on 92 sessions

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For Juanita to get to the zoo she must take either the number 12 bus or else the subway. Everyone knows that the number 12 bus is not running this week; so although Juanita generally avoids using the subway, she must have used it today, since she was seen at the zoo this afternoon.

The method of the argument is to

(A) assert that if something is true, it will be known to be true
(B) demonstrate that certain possibilities are not exclusive
(C) show that something is the case by ruling out the only alternative
(D) explain why an apparent exception to a general rule is not a real
(E) substitutes a claim about what invariably occurs for a claim about what typically occurs


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Re: For Juanita to get to the zoo she must take either the number 12 bus  [#permalink]

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New post 12 Feb 2020, 06:43
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The argument tells us there are two possibilities (subway or bus) and then rules one of them out. So it is reasoning exactly in the way that answer C describes.
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Re: For Juanita to get to the zoo she must take either the number 12 bus  [#permalink]

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New post 19 Feb 2020, 22:08
For Juanita to get to the zoo she must take either the number 12 bus or else the subway. Everyone knows that the number 12 bus is not running this week; so although Juanita generally avoids using the subway, she must have used it today, since she was seen at the zoo this afternoon.

The argument shows only two possible ways for Juanita to reach the zoo. The author is so certain that she used the subway (Because he uses the word must have ). Hence we can assume that there are no other possible ways for her to reach the zoo.

Now, let's look at the answer options.
(A) assert that if something is true, it will be known to be true
The argument doesn't say that, if she takes the subway definitely she will go to the zoo So this option is out of scope

(B) demonstrate that certain possibilities are not exclusive
But the argument says the other way. Incorrect

(C) show that something is the case by ruling out the only alternative
Exactly in line with our analysis. Correct Answer

(D) explain why an apparent exception to a general rule is not a real
The argument deals with a general observation, not any rules and exceptions

(E) substitutes a claim about what invariably occurs for a claim about what typically occurs
out of scope
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Re: For Juanita to get to the zoo she must take either the number 12 bus   [#permalink] 19 Feb 2020, 22:08
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For Juanita to get to the zoo she must take either the number 12 bus

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