Doctors have a higher salary than engineers

Question

Doctors have a higher salary than engineers. But since attorneys have a higher salary than teachers, it follows that doctors have a higher salary than teachers.

Any of the following, when added to the argument as an additional premise, makes the argument logically cohesive EXCEPT:

A) Doctors have a higher salary than attorneys

B) Engineers have a salary that is equal to that of attorneys

C) Attorneys have a higher salary than doctors

D) Engineers have a higher salary than teachers

E) Doctors have a salary equal to that of attorneys

blueseas · Answer

C. 
THIS IS AN  EXCEPT  QUESTION.
 LET doctor = D...teachers = T...Attorneys = A....Engineers =E

Given 
  D>E 
  A>T ....hence  D>T

A) Doctors have a higher salary than attorneys==> D>A ==>  SUPPORTS

B) Engineers have a salary that is equal to that of attorneys==> E>A ==>means  E > T ...hence  D>T ==>  SUPPORTS

C) Attorneys have a higher salary than doctors==>  A>D  ...  not clear .

D) Engineers have a higher salary than teachers==> E>T  ...  SUPPORTS

E) Doctors have a salary equal to that of attorneys==> D=A  ==>CLEARLY THEN  D>T  ==>  SUPPORTS

fahmed1990 · Answer

Attorneys have a higher salary than doctors  this premise make argument wick. If attorneys get higher paid than don't can't be higher than teacher this is the main focus point we have to deal with unless argument become wrong

KB04 · Answer

(i) D > E
(ii) A > T
-------------
Con: D > T

This is an EXCEPT question. Four of the five responses will, when added to premises (i) & (ii), make the entire argument valid: these four will be incorrect. One of the answers will either contradict the conclusion or leave open uncertainty, and this oddball answer will be the correct answer to this question.

A) Doctors have a higher salary than attorneys -- D > A --> D > A > T. Choice (A) turns this into a valid argument supporting the conclusion, so it is incorrect.

B) Engineers have a salary that is equal to that of attorneys -- E = A --> D > E = A > T. Choice (B) turns this into a valid argument supporting the conclusion, so it is incorrect.

C) Attorneys have a higher salary than doctors. --> This the right answer, which says A > D . This means both D & T are less than A, but we are left with uncertainty about how D and T compare to one another. Choice (C ) leaves us with uncertainty, so it is correct answer to the EXCEPT question.

D) Engineers have a higher salary than teachers --> E > T. D>E>T --> D>T.
 
E) Doctors have a salary equal to that of attorneys --> D=A. D = A > T. D>T.

VerbalBot · Answer

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Doctors have a higher salary than engineers

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Doctors have a higher salary than engineers

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