How to Judge Data Sufficiency Answer Choices

Question

Hi All,

I was Practising For data sufficiency when I came across this strange doubt of mine.

If for a question given , if both the options are giving answers but different answers. Can I count them? or is it that I should count them valid only if I am getting a unique answer for both the questions?

For Example:

IS u>v
1) u=10; v=12
2) u=12;v=10

here if I take 1, I will get answer as NO
if I take 2, I will get answer as YES.

Is getting an answer out of two Choices Provided important or getting a unique answer important?
Kindly let me know. Help me out on this!

jumsumtak · Answer

2 things:
1.) In GMAT the information across the two statements is  always  consistent. So you will not face this problem. Also, would recommend to abandon the source where you saw such a problem.
2.) If you decide to persist - the answer is D. You can 'find' information from both the statements, and that is what matters.

Bunuel · Answer

Technically answer should be D, as EACH statement ALONE is sufficient to answer the question.

But even though formal answer to the question is D (EACH statement ALONE is sufficient), this is not a realistic GMAT question, as:  on the GMAT, two data sufficiency statements always provide TRUE information and these statements never contradict each other .

So, the question is flawed. You won't see such a question on the test.

How to Judge Data Sufficiency Answer Choices

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