(7) अलग-अलग लोगों को गोल मेज पर बैठाना है। तीन विशेष लोग लगातार बैठें तो कितनी व्यवस्थाएं होंगी?

(7) distinct people are to be seated around a circular table. If three particular people sit consecutively, how many arrangements are possible?

Explanation opens after your attempt
Correct Answer

A. (720)

Step 1

Concept

Treat the three particular people as one block, giving (5) units around a circle with ((5-1)!) arrangements and (3!) internal ways. The total is \(24\cdot6=144\).

Step 2

Why this answer is correct

The correct answer is A. (720). Treat the three particular people as one block, giving (5) units around a circle with ((5-1)!) arrangements and (3!) internal ways. The total is \(24\cdot6=144\).

Step 3

Exam Tip

तीन विशेष लोगों को एक ब्लॉक मानें, तो (5) इकाइयों की गोल व्यवस्था ((5-1)!) है और अंदर (3!) तरीके हैं। कुल \(24\cdot6=144\) है।

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Mathematics Answer, Explanation and Revision Hints

(7) अलग-अलग लोगों को गोल मेज पर बैठाना है। तीन विशेष लोग लगातार बैठें तो कितनी व्यवस्थाएं होंगी? / (7) distinct people are to be seated around a circular table. If three particular people sit consecutively, how many arrangements are possible?

Correct Answer: A. (720). Explanation: तीन विशेष लोगों को एक ब्लॉक मानें, तो (5) इकाइयों की गोल व्यवस्था ((5-1)!) है और अंदर (3!) तरीके हैं। कुल \(24\cdot6=144\) है। / Treat the three particular people as one block, giving (5) units around a circle with ((5-1)!) arrangements and (3!) internal ways. The total is \(24\cdot6=144\).

Which concept should I revise for this Mathematics MCQ?

Treat the three particular people as one block, giving (5) units around a circle with ((5-1)!) arrangements and (3!) internal ways. The total is \(24\cdot6=144\).

What exam hint can help solve this Mathematics question?

तीन विशेष लोगों को एक ब्लॉक मानें, तो (5) इकाइयों की गोल व्यवस्था ((5-1)!) है और अंदर (3!) तरीके हैं। कुल \(24\cdot6=144\) है।