Let's assume the answer to a question is "D" (each statement alone)
Do statement 1 and statement 2 have to yield the same answer?
For example,
is x = 2?
1. x - 2 = 0 (the answer is yes)
2. x - 3 = 0 (the answer is no)
Could the answer choice be D because both statements yield definitive answers, however the answers are different?
Should the answers yield the same result? In this case should the answer be A.
General DS Question
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Yes, on any real GMAT question, the two statements must be 'logically consistent'. You will never see two statements on Data Sufficiency like the following:
1) x = 2
2) x = 3
since it is impossible for both statements to be true, and therefore impossible to consider the two statements together- what would it mean for x to be equal to both 2 and 3 at the same time? Some questions produced by test prep companies do not observe this rule, however.
1) x = 2
2) x = 3
since it is impossible for both statements to be true, and therefore impossible to consider the two statements together- what would it mean for x to be equal to both 2 and 3 at the same time? Some questions produced by test prep companies do not observe this rule, however.