(12) कर्मचारियों में से (5) की समिति बनानी है जिसमें एक निश्चित कर्मचारी अवश्य शामिल हो। कितने तरीके हैं?

A committee of (5) is to be formed from (12) employees with one fixed employee included. How many ways are there?

Explanation opens after your attempt
Correct Answer

A. (330)

Step 1

Concept

One employee is already selected, so choose the remaining (4) from (11). The ways are \(\binom{11}{4}=330\).

Step 2

Why this answer is correct

The correct answer is A. (330). One employee is already selected, so choose the remaining (4) from (11). The ways are \(\binom{11}{4}=330\).

Step 3

Exam Tip

एक कर्मचारी पहले से चुना है इसलिए बाकी (4) कर्मचारी (11) में से चुनेंगे। तरीके \(\binom{11}{4}=330\) हैं।

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Mathematics Answer, Explanation and Revision Hints

(12) कर्मचारियों में से (5) की समिति बनानी है जिसमें एक निश्चित कर्मचारी अवश्य शामिल हो। कितने तरीके हैं? / A committee of (5) is to be formed from (12) employees with one fixed employee included. How many ways are there?

Correct Answer: A. (330). Explanation: एक कर्मचारी पहले से चुना है इसलिए बाकी (4) कर्मचारी (11) में से चुनेंगे। तरीके \(\binom{11}{4}=330\) हैं। / One employee is already selected, so choose the remaining (4) from (11). The ways are \(\binom{11}{4}=330\).

Which concept should I revise for this Mathematics MCQ?

One employee is already selected, so choose the remaining (4) from (11). The ways are \(\binom{11}{4}=330\).

What exam hint can help solve this Mathematics question?

एक कर्मचारी पहले से चुना है इसलिए बाकी (4) कर्मचारी (11) में से चुनेंगे। तरीके \(\binom{11}{4}=330\) हैं।