यदि \(A=\{w,x,y,z\}\) है तो (\mathcal{P}(A)) में कितने तीन तत्व वाले उपसमुच्चय होंगे?

If \(A=\{w,x,y,z\}\), how many three element subsets are in (\mathcal{P}(A))?

Explanation opens after your attempt
Correct Answer

C. (4)

Step 1

Concept

There are (4) ways to choose three elements from four. So there are (4) three element subsets.

Step 2

Why this answer is correct

The correct answer is C. (4). There are (4) ways to choose three elements from four. So there are (4) three element subsets.

Step 3

Exam Tip

चार तत्वों में से तीन चुनने के (4) तरीके हैं। इसलिए तीन तत्व वाले उपसमुच्चय (4) हैं।

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Mathematics Answer, Explanation and Revision Hints

यदि \(A=\{w,x,y,z\}\) है तो (\mathcal{P}(A)) में कितने तीन तत्व वाले उपसमुच्चय होंगे? / If \(A=\{w,x,y,z\}\), how many three element subsets are in (\mathcal{P}(A))?

Correct Answer: C. (4). Explanation: चार तत्वों में से तीन चुनने के (4) तरीके हैं। इसलिए तीन तत्व वाले उपसमुच्चय (4) हैं। / There are (4) ways to choose three elements from four. So there are (4) three element subsets.

Which concept should I revise for this Mathematics MCQ?

There are (4) ways to choose three elements from four. So there are (4) three element subsets.

What exam hint can help solve this Mathematics question?

चार तत्वों में से तीन चुनने के (4) तरीके हैं। इसलिए तीन तत्व वाले उपसमुच्चय (4) हैं।