(12) सदस्यों में से (5) सदस्यों की समिति बनानी है जिसमें (2) निश्चित सदस्य अवश्य शामिल हों। कितने तरीके होंगे?
A committee of (5) members is to be formed from (12) members with (2) fixed members included. How many ways are possible?
Explanation opens after your attempt
Correct Answer
A. (120)
Concept
The (2) members are fixed so the remaining (3) are chosen from (10). Hence \(\binom{10}{3}=120\).
Why this answer is correct
The correct answer is A. (120). The (2) members are fixed so the remaining (3) are chosen from (10). Hence \(\binom{10}{3}=120\).
Exam Tip
(2) सदस्य तय हैं इसलिए बाकी (3) सदस्य (10) में से चुने जाएंगे। अतः \(\binom{10}{3}=120\) होगा।
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