Melinda can earn an MBA unless she does poorly on the GMAT

Question

Melinda can earn an MBA unless she does poorly on the GMAT or does not get a scholarship. 

Which one of the following statements cannot be validly drawn from the above statements? 
(A) Melinda received an MBA. So she must have both done well on the GMAT and gotten a scholarship. 
(B) Melinda received an MBA and she did well on the GMAT. So she must have gotten a scholarship. 
(C) Melinda did poorly on the GMAT. So she will not earn an MBA. 
(D) If Melinda does not earn an MBA, then she did poorly on the GMAT or could not get a scholarship. 
(E) If Melinda does poorly on the GMAT and does not get a scholarship, then she will not earn an MBA.

FN · Answer

A it is..

gmat2me2 · Answer

Taking a very wild guess here

Y unless X 
This is the equivalent of: If non X then Y. Also, if non Y then X. 

This is of format A unless (B or C)

If negate(B or C) then A OR if non A then (B or C)

I thought E came close to this. 

The only thing I am not sure is if OR becomes AND while we negate the statement.

christoph · Answer

D)...will explain if correct

Arsene_Wenger · Answer

(D). 

No MBA ---> Bad Gmat or No Scholarship.

Only (D) follows the logic.

banerjeea_98 · Answer

Altho these are good questions to build logical reasoning, but make sure u don't take them too seriously. Questions like these will never show up in GMAT. So don't break ur head if u get some wrong. Infact if u r close to ur exam date, avoid these type of CRs altogether and focus on assumption, weakean, strengthen types of questions.

gmat2me2 · Answer

Baner you worked on a real good strategy to get such a brilliant score :-D

riteshgupta1 · Answer

I think the question is asking for CAN NOT validly drawn.

Which one of the following statements   cannot   be validly drawn from the above statements.

Only D from my point of view can not be drawn.

gmat2me2 · Answer

Good catch...I totally missed "cannot".....So it should be D

By the same reasoning I provided though

jpv · Answer

Input taken.

jpv · Answer

OA is indeed (D). Please expain. Also please refute (E).

HIMALAYA · Answer

I must have answered this question, jpv. I did read it but i do not know why i didnot answer it.

D makes sense because Melinda does not earn an MBA doesnot mean that she did poorly on the GMAT or she could not get a scholarship. She might have not appeared for the test or she might have changed her mind not to do MBA without applying.

E can be refuted because it can be validly drawn from the statement. If melinda doesnot have a good gmat score and a scholarship, she cannot earn an MBA.

christoph · Answer

fact is that melinda can earn a MBA. the only reason that she cannot earn a MBA is X or Y. so when we get to know that she did not earn a MBA, we can conclude that X or Y happened. BUT when we get to know that X or Y happened, we can conclude many things. its not sure that X or Y results ONLY in not earning a MBA.

Melinda can earn an MBA unless she does poorly on the GMAT

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