(7) लोगों की गोल बैठक में दो विशेष व्यक्ति हमेशा साथ बैठें तो व्यवस्थाएं कितनी होंगी?
In a circular seating of (7) people, how many arrangements are possible if two particular people always sit together?
Explanation opens after your attempt
A. (240)
Concept
Treat the two people as one block, giving (6) units in a circle, so \(5!\cdot2!=240\). In exams, also multiply by the internal arrangement of the block.
Why this answer is correct
The correct answer is A. (240). Treat the two people as one block, giving (6) units in a circle, so \(5!\cdot2!=240\). In exams, also multiply by the internal arrangement of the block.
Exam Tip
दो व्यक्तियों को एक ब्लॉक मानें, गोल में (6) इकाइयां हैं, इसलिए \(5!\cdot2!=240\)। परीक्षा में ब्लॉक के अंदर की व्यवस्था भी गुणा करें।
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