(7) लोगों में से केवल (3) प्रतिनिधि चुनने की गिनती किस सूत्र से होगी?
Which formula counts choosing only (3) representatives from (7) people?
Explanation opens after your attempt
B. \(^{7}C_3\)
Concept
There are no different posts among the representatives so order is not counted. In exams use combination for only selection.
Why this answer is correct
The correct answer is B. \(^{7}C_3\). There are no different posts among the representatives so order is not counted. In exams use combination for only selection.
Exam Tip
प्रतिनिधियों में कोई अलग पद नहीं है इसलिए क्रम नहीं गिना जाएगा। परीक्षा में only selection हो तो combination लगाएँ।
Login to save your score, XP, coins and progress.
