यदि \(A=\{1,2,3,4,5\}\), तो (\mathcal{P}(A)) के कितने तत्वों में (2) और (3) में से कम से कम एक होगा?

If \(A=\{1,2,3,4,5\}\), how many elements of (\mathcal{P}(A)) contain at least one of (2) and (3)?

Explanation opens after your attempt
Correct Answer

C. (24)

Step 1

Concept

There are (32) total subsets. Those containing neither (2) nor (3) are \(2^3=8\), so the answer is (24).

Step 2

Why this answer is correct

The correct answer is C. (24). There are (32) total subsets. Those containing neither (2) nor (3) are \(2^3=8\), so the answer is (24).

Step 3

Exam Tip

कुल उपसमुच्चय (32) हैं। (2) और (3) दोनों न लेने वाले \(2^3=8\) हैं, इसलिए उत्तर (24) है।

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Mathematics Answer, Explanation and Revision Hints

यदि \(A=\{1,2,3,4,5\}\), तो (\mathcal{P}(A)) के कितने तत्वों में (2) और (3) में से कम से कम एक होगा? / If \(A=\{1,2,3,4,5\}\), how many elements of (\mathcal{P}(A)) contain at least one of (2) and (3)?

Correct Answer: C. (24). Explanation: कुल उपसमुच्चय (32) हैं। (2) और (3) दोनों न लेने वाले \(2^3=8\) हैं, इसलिए उत्तर (24) है। / There are (32) total subsets. Those containing neither (2) nor (3) are \(2^3=8\), so the answer is (24).

Which concept should I revise for this Mathematics MCQ?

There are (32) total subsets. Those containing neither (2) nor (3) are \(2^3=8\), so the answer is (24).

What exam hint can help solve this Mathematics question?

कुल उपसमुच्चय (32) हैं। (2) और (3) दोनों न लेने वाले \(2^3=8\) हैं, इसलिए उत्तर (24) है।