(9) छात्रों में से (4) छात्रों की committee बनानी हो तो \(^{9}C_4\) क्यों पर्याप्त है?
If a committee of (4) students is formed from (9) students then why is \(^{9}C_4\) sufficient?
Explanation opens after your attempt
Correct Answer
C. क्योंकि केवल समूह चाहिएBecause only a group is needed
Concept
Only membership is counted in a committee, not order. In exams use combination for a group without posts.
Why this answer is correct
The correct answer is C. क्योंकि केवल समूह चाहिए / Because only a group is needed. Only membership is counted in a committee, not order. In exams use combination for a group without posts.
Exam Tip
Committee में केवल सदस्यता गिनी जाती है, क्रम नहीं। परीक्षा में group बिना पद के हो तो combination लगाएं।
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