(14) विद्यार्थियों में से (6) चुनने हैं। (3) नामित विद्यार्थियों में से कम से कम (1) चुना जाए। कितने चयन होंगे?
From (14) students, (6) are to be selected. At least (1) of (3) named students must be selected. How many selections are possible?
Explanation opens after your attempt
Correct Answer
C. (2541)
Concept
Total selections are \(^{14}C_{6}\). Subtract selections with no named student \(^{11}C_{6}\) to get (2541).
Why this answer is correct
The correct answer is C. (2541). Total selections are \(^{14}C_{6}\). Subtract selections with no named student \(^{11}C_{6}\) to get (2541).
Exam Tip
कुल चयन \(^{14}C_{6}\) हैं। कोई नामित विद्यार्थी न चुने जाने वाले \(^{11}C_{6}\) घटाने पर (2541) मिलता है।
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