SBI PO Prelims practice question
Statements: Some houses are birds. Some birds are engineers. Some engineers are bottles. Conclusions: I. Some engineers are birds II. No birds is houses. Which of the conclusions follow(s) from the statements?
From a SBI PO Prelims Reasoning practice set · Reasoning
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Correct answer: (A) Only conclusion I follows
Statements: Some houses are birds. Some birds are engineers. Some engineers are bottles. Conclusion I: The given statements guarantee at least some overlap between engineers and birds in every possible case, so "Some engineers are birds." definitely follows. Conclusion II: "No birds is houses." is true in some cases consistent with the statements but false in others (or never true), so it does not definitely follow. So: Only conclusion I follows.
हिंदी में प्रश्न
कथन: कुछ घर, पक्षी हैं। कुछ पक्षी, इंजीनियर हैं। कुछ इंजीनियर, बोतलें हैं। निष्कर्ष: I. कुछ इंजीनियर, पक्षी हैं II. कोई पक्षी, घर नहीं है। कथनों से कौन सा/से निष्कर्ष अनुसरण करता/करते है/हैं?
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सही उत्तर: (A) केवल निष्कर्ष I अनुसरण करता है
कथन: कुछ घर, पक्षी हैं। कुछ पक्षी, इंजीनियर हैं। कुछ इंजीनियर, बोतलें हैं। निष्कर्ष I: दिए गए कथनों के अनुरूप हर संभावित स्थिति में "कुछ इंजीनियर, पक्षी हैं।" सत्य है, इसलिए यह निश्चित रूप से अनुसरण करता है। निष्कर्ष II: "कोई पक्षी, घर नहीं है।" कथनों के अनुरूप कुछ स्थितियों में सत्य हो सकता है पर सभी में नहीं (या कभी नहीं), इसलिए यह निश्चित रूप से अनुसरण नहीं करता। अतः: केवल निष्कर्ष I अनुसरण करता है।
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