(8) अलग-अलग व्यक्तियों में से (5) को गोल मेज पर बैठाने के कितने तरीके हैं?

In how many ways can (5) people be selected from (8) distinct people and seated around a circular table?

Explanation opens after your attempt
Correct Answer

A. (6720)

Step 1

Concept

First choose (5) people in \(\binom{8}{5}\) ways and then seat them around a circle in ((5-1)!) ways. The total is \(\binom{8}{5}\cdot4!=1344\).

Step 2

Why this answer is correct

The correct answer is A. (6720). First choose (5) people in \(\binom{8}{5}\) ways and then seat them around a circle in ((5-1)!) ways. The total is \(\binom{8}{5}\cdot4!=1344\).

Step 3

Exam Tip

पहले (5) लोगों को \(\binom{8}{5}\) तरीकों से चुनें और फिर गोल में ((5-1)!) तरीकों से बैठाएं। कुल \(\binom{8}{5}\cdot4!=1344\) है।

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Mathematics Answer, Explanation and Revision Hints

(8) अलग-अलग व्यक्तियों में से (5) को गोल मेज पर बैठाने के कितने तरीके हैं? / In how many ways can (5) people be selected from (8) distinct people and seated around a circular table?

Correct Answer: A. (6720). Explanation: पहले (5) लोगों को \(\binom{8}{5}\) तरीकों से चुनें और फिर गोल में ((5-1)!) तरीकों से बैठाएं। कुल \(\binom{8}{5}\cdot4!=1344\) है। / First choose (5) people in \(\binom{8}{5}\) ways and then seat them around a circle in ((5-1)!) ways. The total is \(\binom{8}{5}\cdot4!=1344\).

Which concept should I revise for this Mathematics MCQ?

First choose (5) people in \(\binom{8}{5}\) ways and then seat them around a circle in ((5-1)!) ways. The total is \(\binom{8}{5}\cdot4!=1344\).

What exam hint can help solve this Mathematics question?

पहले (5) लोगों को \(\binom{8}{5}\) तरीकों से चुनें और फिर गोल में ((5-1)!) तरीकों से बैठाएं। कुल \(\binom{8}{5}\cdot4!=1344\) है।