GMAT Question of the Day (Oct 28): Geometry and Critical Reasoning

Math (DS)

If , , and are points on the plane, is ?

1.
2. Area of triangle

OA and Explanation

Verbal (CR)

Ellen: All three of Shirley’s children have the measles!
Lois: As a matter of fact, all three of Shirley’s children are fine!

Accepting the assumption that nobody who has measles is fine, which of the following must be true about this exchange?

(A) It is possible that both Ellen and Lois are right about Shirley’s children.
(B) It is possible that both Ellen and Lois are mistaken about Shirley’s children.
(C) Either Ellen is right about Shirley’s children, or Lois is right about them, but they cannot both be right.
(D) Ellen and Lois might both be right about Shirley’s children, and they might both be wrong about them.
(E) None of these alternatives correctly identifies the possibilities for this scenario.

OA and Explanation

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