(11) गणित और (8) भौतिकी पुस्तकों में से (6) पुस्तकें चुननी हैं जिनमें कम से कम (4) गणित पुस्तकें हों। कितने तरीके हैं?
From (11) mathematics and (8) physics books (6) books are to be selected with at least (4) mathematics books. How many ways are there?
Explanation opens after your attempt
C. (13398)
Simple Explanation
मामले (4), (5) और (6) गणित पुस्तकों के हैं। कुल \(\binom{11}{4}\binom{8}{2}+\binom{11}{5}\binom{8}{1}+\binom{11}{6}=13398\) है। / The cases are (4), (5), and (6) mathematics books. The total is \(\binom{11}{4}\binom{8}{2}+\binom{11}{5}\binom{8}{1}+\binom{11}{6}=13398\).
Login to save your score, XP, coins and progress.
QR scan karne par isi question ka correct answer aur explanation khula hua milega.
Open answer link