GMAT Question of the Day (Jan 20): Coordinate Geometry and Sentence Correction

By - Jan 20, 02:00 AM Comments [0]

Math (PS)

If equation |x| + |y| = 5 encloses a certain region on the graph, what is the area of that region?

(A) 5
(B) 10
(C) 25
(D) 50
(E) 100

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Verbal (SC)

Many scientists believe that abnormalities in brain chemistry cause clinical depression, but they have not established what these abnormalities are or how they lead to illness.

(A) cause clinical depression, but they have not established what these abnormalities are or
(B) cause clinical depression, but they have not established either what these abnormalities are nor
(C) are the cause of clinical depression, but they have neither not established what these abnormalities are or
(D) are the cause of clinical depression, but they have not established either what these abnormalities are nor
(E) causes clinical depression, but they have not established what these abnormalities are nor

Answers to the questions: D, A
For explanations please see these threads: math and verbal

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