Statements: All dresses are cloth. No cloth is plastic. Conclusions: I. Some plastics are not dresses. II. No dress is plastic
Correct answer: A. Only II
- A. Only II
- B. Only I
- C. Both
- D. None
Explanation
In this logical deduction problem, we are given two statements: 'All dresses are cloth' and 'No cloth is plastic.' Based on these statements, we need to evaluate the conclusions.Conclusion I, 'Some plastics are not dresses,' cannot be definitively proven or disproven with the provided information. The statements do not specify the relationship between plastics and dresses beyond the fact that no cloth is plastic. Thus, this conclusion cannot be reliably inferred.Conclusion II, 'No dress is plastic,' logically follows from the statements. Since all dresses are made of cloth and no cloth is plastic, it is impossible for any dress to be plastic. Therefore, conclusion II is correct.Thus, the correct answer is Option A, 'Only II.'
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About Logical Deductions
Logical deductions require conclusions to be drawn from stated facts, conditions and relationships without adding outside information. The work includes handling all, some and none statements, necessary and sufficient conditions, ordering restrictions, true or false conclusions, and the difference between what must be true and what could be true.
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