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CR_conditional statement [#permalink]
 22 Mar 2008, 13:33
Question Stats:
0% (00:00) correct
 0% (00:00) wrong based on 0 sessions
I need ur ideas, folks on this question. I will post OA and OE later. Thanks.
Crack GMAT (diagnostic test)
Question # 20
I meet the principal and the vice-principal whenever I visit the school.
If this statement is true, which of the following must also be true?
1) If I am meeting the principal and the vice-principal, I am visiting the school.
2) If I am meeting the principal but not the vice-principal, I am not visiting the school.
3) If I am not visitng the school, I am not meeting the principal and the vice principal.
(A) I only
(B) II only
(3) III only
(D) I and II only
(E) II and III only
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Re: CR_conditional statement [#permalink]
22 Mar 2008, 15:44
B1) If I am meeting the principal and the vice-principal, I am visiting the school. Can be false: I meet the principal and the vice-principal whenever I visit the cafe. - does not contradict to the initial statement.
Therefore, If I meet the principal and the vice-principal, I may visit the school or the cafe (not the school)2) If I am meeting the principal but not the vice-principal, I am not visiting the school. Denial test: I am meeting the principal but not the vice-principal ---> I am visiting the school. --> I meet the principal and the vice-principal whenever I visit the school.
there is contradiction. Therefore, the statement must be true.3) If I am not visitng the school, I am not meeting the principal and the vice principal. The same reasoning as for 1).
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Re: CR_conditional statement [#permalink]
22 Mar 2008, 18:06
UMB wrote: I need ur ideas, folks on this question. I will post OA and OE later. Thanks.
Crack GMAT (diagnostic test)
Question # 20: I meet the principal and the vice-principal whenever I visit the school.
If this statement is true, which of the following must also be true?
1) If I am meeting the principal and the vice-principal, I am visiting the school.
2) If I am meeting the principal but not the vice-principal, I am not visiting the school.
3) If I am not visitng the school, I am not meeting the principal and the vice principal.
(A) I only
(B) II only
(C) III only
(D) I and II only
(E) II and III only 1) If I am meeting the principal and the vice-principal, I am visiting the school. I could be meeting them out of the school. so not true. 2) If I am meeting the principal but not the vice-principal, I am not visiting the school. If I visit the school, I meet both. If I am not meeting both, then I am not visiting the school. I am meeting the principal somewhere else out of the school. True. 3) If I am not visitng the school, I am not meeting the principal and the vice principal. I could be meeting both somewhere else other than school. so not true. Only B.
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Re: CR_conditional statement [#permalink]
22 Mar 2008, 20:55
UMB wrote: I need ur ideas, folks on this question. I will post OA and OE later. Thanks.
Crack GMAT (diagnostic test)
Question # 20
I meet the principal and the vice-principal whenever I visit the school.
If this statement is true, which of the following must also be true?
1) If I am meeting the principal and the vice-principal, I am visiting the school.
2) If I am meeting the principal but not the vice-principal, I am not visiting the school.
3) If I am not visitng the school, I am not meeting the principal and the vice principal.
(A) I only
(B) II only
(3) III only
(D) I and II only
(E) II and III only B also if A then B and C Must be true: If Not B or not C, then not A
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Re: CR_conditional statement [#permalink]
23 Mar 2008, 10:21
Thank you guys for great explanations.
Here are OE and OA. I didn't like below explanation, although it leads to urs.
Explanation (Crack GMAT)
This is best attempted through the process of elimination.
All that the given statement contends is that if I am visiting the school, I am meeting the principal AND the vice-principal.
In light of this, statements I and III are not valid.
Hence (B) is the correct answer.
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Re: CR_conditional statement [#permalink]
25 Mar 2008, 02:55
b IS THE CORRECT ONE!
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Re: CR_conditional statement [#permalink]
25 Mar 2008, 04:12
yea B I agree.
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Re: CR_conditional statement
[#permalink]
25 Mar 2008, 04:12
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