(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
Correct Answer

D. (460)

Step 1

Concept

Total selections are \(\binom{12}{4}=495\) and all-men selections are \(\binom{7}{4}=35\). Hence (495-35=460).

Step 2

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).

Step 3

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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Mathematics Answer, Explanation and Revision Hints

(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?

Correct Answer: D. (460). Explanation: कुल चयन \(\binom{12}{4}=495\) हैं और केवल पुरुष \(\binom{7}{4}=35\) हैं। इसलिए (495-35=460) तरीके हैं। / Total selections are \(\binom{12}{4}=495\) and all-men selections are \(\binom{7}{4}=35\). Hence (495-35=460).

Which concept should I revise for this Mathematics MCQ?

Total selections are \(\binom{12}{4}=495\) and all-men selections are \(\binom{7}{4}=35\). Hence (495-35=460).

What exam hint can help solve this Mathematics question?

कुल चयन \(\binom{12}{4}=495\) हैं और केवल पुरुष \(\binom{7}{4}=35\) हैं। इसलिए (495-35=460) तरीके हैं।