Statements: Some boys are students. All students are hardworking. Conclusions: I. Some boys are hardworking. II. All boys are students.
Correct answer: A. Only I
- A. Only I
- B. Only II
- C. Both I and II
- D. Neither I nor II
Explanation
The correct answer is 'Only I'. The statement 'Some boys are students' combined with 'All students are hardworking' leads to the inference that 'Some boys are hardworking', making conclusion I valid. Conclusion II is incorrect because the statements do not indicate that all boys are students; it only specifies that some boys are students. Therefore, conclusion II cannot be logically deduced from the given information.
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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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