यदि \(A=\{a,b,c,d,e,f,g\}\) है, तो (\mathcal{P}(A)) में ठीक (6) तत्व वाले उपसमुच्चयों की संख्या कितनी है?

If \(A=\{a,b,c,d,e,f,g\}\), how many subsets with exactly (6) elements are in (\mathcal{P}(A))?

Explanation opens after your attempt
Correct Answer

B. (7)

Step 1

Concept

The number of ways to choose (6) elements from (7) is \(\binom{7}{6}=7\). Each choice is a subset.

Step 2

Why this answer is correct

The correct answer is B. (7). The number of ways to choose (6) elements from (7) is \(\binom{7}{6}=7\). Each choice is a subset.

Step 3

Exam Tip

(7) में से (6) तत्व चुनने के तरीके \(\binom{7}{6}=7\) हैं। हर चयन एक उपसमुच्चय है।

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Mathematics Answer, Explanation and Revision Hints

यदि \(A=\{a,b,c,d,e,f,g\}\) है, तो (\mathcal{P}(A)) में ठीक (6) तत्व वाले उपसमुच्चयों की संख्या कितनी है? / If \(A=\{a,b,c,d,e,f,g\}\), how many subsets with exactly (6) elements are in (\mathcal{P}(A))?

Correct Answer: B. (7). Explanation: (7) में से (6) तत्व चुनने के तरीके \(\binom{7}{6}=7\) हैं। हर चयन एक उपसमुच्चय है। / The number of ways to choose (6) elements from (7) is \(\binom{7}{6}=7\). Each choice is a subset.

Which concept should I revise for this Mathematics MCQ?

The number of ways to choose (6) elements from (7) is \(\binom{7}{6}=7\). Each choice is a subset.

What exam hint can help solve this Mathematics question?

(7) में से (6) तत्व चुनने के तरीके \(\binom{7}{6}=7\) हैं। हर चयन एक उपसमुच्चय है।