प्रश्न 23
कठिनमौलिक प्रश्नRead the statements as true, even if they conflict with commonly known facts, and decide which of the conclusions follows.
Statements: All doctors are graduates. All graduates are literate.
Conclusions: I. All doctors are literate. II. Some literate people are doctors.
उत्तर और हल देखें
सही उत्तर: C
हल
The two statements chain together: every doctor is a graduate, and every graduate is literate, so every doctor is literate. Conclusion I follows.
Conclusion II is the converse in its weaker 'some' form. Since all doctors are literate and doctors exist, at least some literate people are doctors.
Both conclusions follow.
ध्यान देने योग्य
'All A are B' does not give 'All B are A', but it does give 'Some B are A'. That asymmetry is the single most useful rule in this topic.
- संकल्पना
- Chained universal statements and their converses
- सामान्य समयसामान्य
- 90 से.
- आपका समयआपका
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न्याय निगमन (Syllogism) से दस प्रश्न, अपनी गति से।