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Zorluk: KolayValue vs. Yes/No Data Sufficiency Decision Logic

In a GMAT Data Sufficiency 'Yes/No' question, if a statement allows multiple possible numerical values for a variable, but every permitted value yields a consistent 'Yes' answer to the question stem, that statement must be declared insufficient because it fails to determine a single unique value for the variable.

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The statement is False.
The correct evaluation is False. In GMAT Data Sufficiency, a 'Yes/No' question requires only that a statement produces a single, consistent binary answer (always 'Yes' or always 'No'). Even if a statement allows a variable to take on multiple values, the statement is completely sufficient if every one of those values leads to an identical 'Yes' outcome. Requiring a single unique numerical value is the benchmark for 'Value' questions, not 'Yes/No' questions.

Adım Adım Çözüm

1
Identify the question type being described.
The statement concerns a 'Yes/No' Data Sufficiency question.
GMAT Data Sufficiency questions are divided into 'Value' questions and 'Yes/No' questions.
2
Recall the sufficiency criteria for 'Yes/No' Data Sufficiency questions.
A statement is sufficient if it yields a definitive 'Yes' or a definitive 'No'.
A single unique numerical value is required only for 'Value' questions, not for 'Yes/No' questions.
3
Evaluate whether multiple variable values yielding a consistent 'Yes' result in sufficiency.
Since every permitted value leads to a consistent 'Yes', the question stem is answered conclusively, making the statement sufficient.
Failing to narrow a variable down to a single value is irrelevant in a Yes/No question if all valid values yield the same binary outcome.

Anahtar Kavram

Distinction between sufficiency criteria for Value vs. Yes/No Data Sufficiency questions
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Value vs. Yes/No Data Sufficiency Decision Logic

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