(10) लोगों की पंक्ति में दो विशेष व्यक्ति हमेशा साथ रहें तो व्यवस्थाएं कितनी होंगी?

In a row of (10) people, how many arrangements are possible if two particular people always stay together?

Explanation opens after your attempt
Correct Answer

B. (725760)

Step 1

Concept

Treat the two particular people as one block, then \(9!\cdot2!=725760\). In exams, include the internal arrangement of the block.

Step 2

Why this answer is correct

The correct answer is B. (725760). Treat the two particular people as one block, then \(9!\cdot2!=725760\). In exams, include the internal arrangement of the block.

Step 3

Exam Tip

दो विशेष व्यक्तियों को एक ब्लॉक मानें, तब \(9!\cdot2!=725760\)। परीक्षा में साथ रहने की शर्त में block के अंदर की व्यवस्था भी लें।

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(10) लोगों की पंक्ति में दो विशेष व्यक्ति हमेशा साथ रहें तो व्यवस्थाएं कितनी होंगी? / In a row of (10) people, how many arrangements are possible if two particular people always stay together?

Correct Answer: B. (725760). Explanation: दो विशेष व्यक्तियों को एक ब्लॉक मानें, तब \(9!\cdot2!=725760\)। परीक्षा में साथ रहने की शर्त में block के अंदर की व्यवस्था भी लें। / Treat the two particular people as one block, then \(9!\cdot2!=725760\). In exams, include the internal arrangement of the block.

Which concept should I revise for this Mathematics MCQ?

Treat the two particular people as one block, then \(9!\cdot2!=725760\). In exams, include the internal arrangement of the block.

What exam hint can help solve this Mathematics question?

दो विशेष व्यक्तियों को एक ब्लॉक मानें, तब \(9!\cdot2!=725760\)। परीक्षा में साथ रहने की शर्त में block के अंदर की व्यवस्था भी लें।