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A passenger cannot land in Ulan Batur without first landing in Ethiopi

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Joined: 22 Jun 2014
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A passenger cannot land in Ulan Batur without first landing in Ethiopi [#permalink]

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New post 08 May 2017, 10:58
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Difficulty:

  15% (low)

Question Stats:

77% (00:54) correct 23% (00:58) wrong based on 164 sessions

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A passenger cannot land in Ulan Batur without first landing in Ethiopia. You can land in Ethiopia only if you've landed in Republic.

If the statements above are true, which of the following must also be true?

A) If a passenger landed in Republic, he must also have landed in Ethiopia.

B) If a passenger has not landed in Ethiopia, he must not have landed in Republic.

C) A passenger can land in either Republic or Ethiopia but not both.

D) A passenger who is in Ulan Batur has not landed in Ethiopia.

E) A passenger who has not landed in Republic has not landed in Ulan Batur.

Source: 800Score

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Re: A passenger cannot land in Ulan Batur without first landing in Ethiopi [#permalink]

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New post 10 May 2017, 02:33
HKD1710 wrote:
A passenger cannot land in Ulan Batur without first landing in Ethiopia. You can land in Ethiopia only if you've landed in Republic.

If the statements above are true, which of the following must also be true?

A) If a passenger landed in Republic, he must also have landed in Ethiopia.

B) If a passenger has not landed in Ethiopia, he must not have landed in Republic.

C) A passenger can land in either Republic or Ethiopia but not both.

D) A passenger who is in Ulan Batur has not landed in Ethiopia.

E) A passenger who has not landed in Republic has not landed in Ulan Batur.

Source: 800Score



IMO E

If you have not landed in Republic than you cannot land in Ethiopia and if you have not landed in Ethiopia then you cannot land in Ulan Batur.
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Re: A passenger cannot land in Ulan Batur without first landing in Ethiopi [#permalink]

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New post 27 Sep 2017, 23:03
Hello Experts,

This looks like a 'Necessary' and 'sufficient' condition question to be as explained in Power score CR. Am I correct in my understanding?

if yes, can someone please help me understand the answer to this by using Diagramming?

Thanking you in Advance!



HKD1710 wrote:
A passenger cannot land in Ulan Batur without first landing in Ethiopia. You can land in Ethiopia only if you've landed in Republic.

If the statements above are true, which of the following must also be true?

A) If a passenger landed in Republic, he must also have landed in Ethiopia.

B) If a passenger has not landed in Ethiopia, he must not have landed in Republic.

C) A passenger can land in either Republic or Ethiopia but not both.

D) A passenger who is in Ulan Batur has not landed in Ethiopia.

E) A passenger who has not landed in Republic has not landed in Ulan Batur.

Source: 800Score

_________________

My Best is yet to come!

Re: A passenger cannot land in Ulan Batur without first landing in Ethiopi   [#permalink] 27 Sep 2017, 23:03
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A passenger cannot land in Ulan Batur without first landing in Ethiopi

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