Question
In the following question below are given some
statements followed by some conclusions based on those statements. Taking the given statements to be true even if they seem to be at variance from commonly known facts. Read all the conclusions and then decide which of the given conclusion logically follows the given statements. Statements: I. All Z are X. II. All G are X. Conclusions: I. Some G are Z. II. All X are G. III. Some Z are X.Solution
All Z are X (A) + [All G are X (A) → Conversion] → Some X are G (I) → No conclusion. Hence conclusion I is not true. All G are X (A) → Conversion → Some X are G (I). Hence conclusion II is not true. All Z are X (A) → Conversion → Some X are Z (I). Hence conclusion III is true.
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