(6) लड़कों और (5) लड़कियों में से (5) विद्यार्थियों का दल बनाना है जिसमें कम से कम (2) लड़के और कम से कम (2) लड़कियां हों। कितने दल बनेंगे?
From (6) boys and (5) girls, a team of (5) students is to be formed with at least (2) boys and at least (2) girls. How many teams are possible?
Explanation opens after your attempt
C. (350)
Concept
The possible cases are (2G3B) and (3G2B). The sum is \(^{5}C_{2}\times{}^{6}C_{3}+^{5}C_{3}\times{}^{6}C_{2}=350\).
Why this answer is correct
The correct answer is C. (350). The possible cases are (2G3B) and (3G2B). The sum is \(^{5}C_{2}\times{}^{6}C_{3}+^{5}C_{3}\times{}^{6}C_{2}=350\).
Exam Tip
संभव मामले (2G3B) और (3G2B) हैं। योग \(^{5}C_{2}\times{}^{6}C_{3}+^{5}C_{3}\times{}^{6}C_{2}=350\)।
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