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

In a row of (9) people, how many arrangements are possible if two particular people do not sit together?

Explanation opens after your attempt
Correct Answer

A. (282240)

Step 1

Concept

Subtract the together cases \(8!\cdot2!\) from total (9!). The answer is (362880-80640=282240).

Step 2

Why this answer is correct

The correct answer is A. (282240). Subtract the together cases \(8!\cdot2!\) from total (9!). The answer is (362880-80640=282240).

Step 3

Exam Tip

कुल (9!) व्यवस्थाओं में से साथ बैठने वाली \(8!\cdot2!\) घटाएं। उत्तर (362880-80640=282240) है।

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(9) लोगों की पंक्ति में दो विशेष व्यक्ति साथ न बैठें तो व्यवस्थाएं कितनी होंगी? / In a row of (9) people, how many arrangements are possible if two particular people do not sit together?

Correct Answer: A. (282240). Explanation: कुल (9!) व्यवस्थाओं में से साथ बैठने वाली \(8!\cdot2!\) घटाएं। उत्तर (362880-80640=282240) है। / Subtract the together cases \(8!\cdot2!\) from total (9!). The answer is (362880-80640=282240).

Which concept should I revise for this Mathematics MCQ?

Subtract the together cases \(8!\cdot2!\) from total (9!). The answer is (362880-80640=282240).

What exam hint can help solve this Mathematics question?

कुल (9!) व्यवस्थाओं में से साथ बैठने वाली \(8!\cdot2!\) घटाएं। उत्तर (362880-80640=282240) है।