IB ACIO Grade II previous year question
5 is related to 81. Following the same logic, 2 is related to 9. To which option is 6 related?
Asked in IB ACIO Grade II (16 Sep 2025 Shift 1) · Reasoning
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Correct answer: (C) 121
Rule: (2n−1)². For n=5: (2×5−1)² = 9² = 81 ✓. For n=2: (2×2−1)² = 3² = 9 ✓. For n=6: (2×6−1)² = 11² = 121.
हिंदी में प्रश्न
एक निश्चित तर्क के अनुसार, 5, 81 से संबंधित है। उसी तर्क से, 2, 9 से संबंधित है। उसी तर्क से 6 किससे संबंधित है?
उत्तर जाँचने के लिए किसी विकल्प पर टैप करें।
उत्तर और व्याख्या देखें
सही उत्तर: (C) 121
नियम: (2n−1)². n=5 के लिए: (2×5−1)² = 9² = 81 ✓. n=2 के लिए: (2×2−1)² = 3² = 9 ✓. n=6 के लिए: (2×6−1)² = 11² = 121.
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