If Nance and Onawa are at different clinics, which one of the following must be true?
sairaj87September 5, 2014
Confusing
This question is confusing because it says if n and o are at different clinics.... Can there not be two different scenarios ???
S:NPJ
R: OLK OR
S:OLK
R:NPJ
The question stem does not specify which clinic it just says different clinic so how would I know which clinic??
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Thanks for your message. As for your question, your second scenario conflicts with Rule #4, i.e. "If Nance is at Randsborough, then so is Onawa."
This rule is diagrammed as follows:
Nr ==> Or not Or ==> not Nr
However, we can rewrite the contrapositive because we know that if someone is not at Randsborough, they must be at Souderton.
As such, the contrapositive can be re-written as follows:
Os ==> Ns
So again, Rule #4 is diagrammed as follows:
Nr ==> Or Os ==> Ns
As such, the only possibility that exists where N and O are at different clinics is O at R and N at S (i.e. look at the necessary conditions).
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Hope this helps! Please let us know if you have any other questions.
