(7) लोगों में से अध्यक्ष सचिव और कोषाध्यक्ष चुनने की गिनती किस सूत्र से होगी?
Which formula counts choosing a president secretary and treasurer from (7) people?
Explanation opens after your attempt
C. \(^{7}P_3\)
Concept
The three posts are different so order is important. In exams choose permutation for different posts.
Why this answer is correct
The correct answer is C. \(^{7}P_3\). The three posts are different so order is important. In exams choose permutation for different posts.
Exam Tip
तीनों पद अलग हैं इसलिए क्रम महत्वपूर्ण है। परीक्षा में अलग posts के लिए permutation चुनें।
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