(12) तत्वों वाले समुच्चय के ठीक (5) तत्वों वाले उपसमुच्चयों की संख्या कितनी है?
How many subsets with exactly (5) elements does a set of (12) elements have?
Explanation opens after your attempt
A. (792)
Concept
Choosing a subset with exactly (5) elements means choosing (5) elements from (12). The number is \(^{12}C_{5}=792\).
Why this answer is correct
The correct answer is A. (792). Choosing a subset with exactly (5) elements means choosing (5) elements from (12). The number is \(^{12}C_{5}=792\).
Exam Tip
ठीक (5) तत्वों वाला उपसमुच्चय चुनना (12) में से (5) तत्व चुनना है। संख्या \(^{12}C_{5}=792\) है।
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