(8) पुरुषों और (6) महिलाओं में से (4) व्यक्ति चुनने हैं जिनमें कम से कम (2) महिलाएं हों। कितने तरीके हैं?
From (8) men and (6) women (4) persons are to be selected with at least (2) women. How many ways are there?
Explanation opens after your attempt
Correct Answer
B. (665)
Concept
The cases are (2), (3), and (4) women. The correct sum is \(\binom{6}{2}\binom{8}{2}+\binom{6}{3}\binom{8}{1}+\binom{6}{4}=595\).
Why this answer is correct
The correct answer is B. (665). The cases are (2), (3), and (4) women. The correct sum is \(\binom{6}{2}\binom{8}{2}+\binom{6}{3}\binom{8}{1}+\binom{6}{4}=595\).
Exam Tip
मामले (2), (3) और (4) महिलाओं के हैं। कुल \(\binom{6}{2}\binom{8}{2}+\binom{6}{3}\binom{8}{1}+\binom{6}{4}=595\) नहीं बल्कि सही जोड़ (420+160+15=595) है।
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