(13) अलग-अलग अध्यायों में से (3) अध्याय पुनरावृत्ति के लिए कितने तरीकों से चुने जा सकते हैं?
How many ways can (3) chapters be selected from (13) different chapters for revision?
Explanation opens after your attempt
C. (286)
Concept
Only selection of chapters is involved. Hence \(\binom{13}{3}=286\) is correct.
Why this answer is correct
The correct answer is C. (286). Only selection of chapters is involved. Hence \(\binom{13}{3}=286\) is correct.
Exam Tip
अध्यायों का केवल चयन है। इसलिए \(\binom{13}{3}=286\) सही है।
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