(18) सदस्यों में से (3) सदस्यों की समिति बनानी है जिसमें एक निश्चित सदस्य अवश्य हो। कितनी समितियां बनेंगी?
A committee of (3) members is to be formed from (18) members with one fixed member included. How many committees are possible?
Explanation opens after your attempt
A. (136)
Concept
Fix the required member first and choose the remaining (2) from (17). The number is \(^{17}C_{2}=136\).
Why this answer is correct
The correct answer is A. (136). Fix the required member first and choose the remaining (2) from (17). The number is \(^{17}C_{2}=136\).
Exam Tip
निश्चित सदस्य को पहले चुन लें और बाकी (2) को (17) में से चुनें। संख्या \(^{17}C_{2}=136\) है।
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