Which of the following expressions may not be true if the following expressions are true? (a) Z > Y (b) Y = W (c) W < X
Correct answer: B. X > Z
- A. W < Z
- B. X > Z
- C. Y < X
- D. All are true.
Explanation
Statement : Z ≥ Y = W and X ≥ W = Y (A) : W ≤ Z => True, since Z ≥ W. (B) : X ≥ Z => Not true (C) : Y ≤ X => True Thus, only (B) may not be true.
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Critical thinking examines how conclusions follow from evidence, including claims, assumptions, arguments, inferences and relevant facts. Questions ask you to identify hidden assumptions, distinguish strong from weak evidence, assess cause and effect, recognise common reasoning errors, and decide which statement strengthens or weakens an argument.
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