(7) पुरुषों और (5) महिलाओं में से (4) व्यक्ति चुनने हैं जिनमें कम से कम (1) महिला हो। कितने तरीके हैं?
From (7) men and (5) women (4) persons are to be selected with at least (1) woman. How many ways are there?
Explanation opens after your attempt
D. (460)
Concept
Total selections are \(\binom{12}{4}=495\) and all-men selections are \(\binom{7}{4}=35\). Hence (495-35=460).
Why this answer is correct
The correct answer is D. (460). Total selections are \(\binom{12}{4}=495\) and all-men selections are \(\binom{7}{4}=35\). Hence (495-35=460).
Exam Tip
कुल चयन \(\binom{12}{4}=495\) हैं और केवल पुरुष \(\binom{7}{4}=35\) हैं। इसलिए (495-35=460) तरीके हैं।
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