# June 2007 - Sec 1 - Game 3 - Q15

## Video Transcript:

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Question 15: If Freedom makes a voyage to Guadaloupe in week 1 and to Trinidad to week 2 which one of the following must be true?
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Well first notice that we can manipulate our previous work from
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fourteen rather quickly to satisfy the conditions set forth in the stem of question 15.
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Again stating that Guadaloupe is going to be in week 1 in trinidad is in Week 2. Well we know
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Martinique would be weak 3 Guadaloupe in 4 Jamaica, Martinique and then Trinidad. Again, coming directly from question 14.
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This is a must be true question so any answer choice that isn't the case in
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this hypothetical that we just drew out to the right again manipulating question
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14's work is automatically eliminated because all I need is one
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counterexample to disprove an answer choice in a must be true question.
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So let's take a look here at (A). Freedom makes a voyage to Martinique in week 3.
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Well we have that in our scenario to the right but again we don't know if that is
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always the case. Right? This is a must be true question. All we've shown is
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that it's possible. We haven't shown that it is necessarily the case no matter
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what. So, let's take a look at the rest of the answer choices to see if we can
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eliminate anything else
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(B) Freedom makes a voyage to Martinique in week 4. Again you notice in our
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scenario to the right here we have Guadaloupe in week 4. So (B) does not have to be
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true.
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(C) Freedom makes a voyage to Martinique in week 5. Again we have Jamaica so clearly that
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doesn't have to be true. So (C) would be eliminated. (D) Freedom makes a voyage
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to Guadaloupe in week 3. Again we've shown that it is Martinique in this scenario
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so (D) doesn't have to be true. So (D) would be eliminated. (E) Freedom makes a voyage to
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Guadalupe in week 5. Again, we've shown in this scenario its Jamaica. So
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that would eliminate (E) and you notice without having to do any additional work
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we can choose (A) as the
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correct answer. Again coming from our hypothetical from question 14 we just
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manipulated it a bit to make sure that we would satisfy the conditions set forth
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in the stem of 15 that Guadalupe is in week 1 and Trinidad is in week 2.