If a, b, c, and d are numbers on the number line shown and if the tick marks are equally spaced, what is the value of a+c?
(1) a + b = -8
(2) a + d = 0
A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
D. EACH statement ALONE is sufficient.
E. Statements (1) and (2) TOGETHER are not sufficient.
Correct Answer: C
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You’ll find tons of practice questions, explanations for GMAT Official Guide questions, and strategies on our GMAT Question of the Day page.
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Here’s an exponents puzzle that comes up a lot in GMAT tutoring sessions:
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