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

In a row of (9) people, how many arrangements are possible if two particular people always remain together?

Explanation opens after your attempt
Correct Answer

A. (80640)

Step 1

Concept

Treat the two particular people as one block, then \(8!\cdot2!=80640\). In exams, use the block method for together conditions.

Step 2

Why this answer is correct

The correct answer is A. (80640). Treat the two particular people as one block, then \(8!\cdot2!=80640\). In exams, use the block method for together conditions.

Step 3

Exam Tip

दो विशेष व्यक्तियों को एक ब्लॉक मानें, तब \(8!\cdot2!=80640\)। परीक्षा में साथ की शर्त में block method लगाएं।

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(9) लोगों की पंक्ति में दो विशेष व्यक्ति हमेशा साथ रहें तो व्यवस्थाएं कितनी होंगी? / In a row of (9) people, how many arrangements are possible if two particular people always remain together?

Correct Answer: A. (80640). Explanation: दो विशेष व्यक्तियों को एक ब्लॉक मानें, तब \(8!\cdot2!=80640\)। परीक्षा में साथ की शर्त में block method लगाएं। / Treat the two particular people as one block, then \(8!\cdot2!=80640\). In exams, use the block method for together conditions.

Which concept should I revise for this Mathematics MCQ?

Treat the two particular people as one block, then \(8!\cdot2!=80640\). In exams, use the block method for together conditions.

What exam hint can help solve this Mathematics question?

दो विशेष व्यक्तियों को एक ब्लॉक मानें, तब \(8!\cdot2!=80640\)। परीक्षा में साथ की शर्त में block method लगाएं।