Data Sufficiency: GMAT Question of the Day
Explanation
The expression is true if a > 20 or a < 2.
Statement (1) tells us −3 < a < 3, which gives us values for a both greater and less than 2. Statement (1) is insufficient.
The correct answer could be B, C, or E.
Statement (2) tells us −1 < a < 1. All such values are less than 2, so we have a definite answer to the question stem. Statement (2) is sufficient.
The correct answer is B.
Statement (1) tells us −3 < a < 3, which gives us values for a both greater and less than 2. Statement (1) is insufficient.
The correct answer could be B, C, or E.
Statement (2) tells us −1 < a < 1. All such values are less than 2, so we have a definite answer to the question stem. Statement (2) is sufficient.
The correct answer is B.