यदि \(A=\{1,2,3,4,5\}\) है तो (\mathcal{P}(A)) में कितने चार तत्व वाले उपसमुच्चय होंगे?

If \(A=\{1,2,3,4,5\}\), how many four element subsets are in (\mathcal{P}(A))?

Explanation opens after your attempt
Correct Answer

B. (5)

Step 1

Concept

There are (5) ways to choose four elements from five. Each time one different element is left out.

Step 2

Why this answer is correct

The correct answer is B. (5). There are (5) ways to choose four elements from five. Each time one different element is left out.

Step 3

Exam Tip

पांच तत्वों में से चार चुनने के (5) तरीके हैं। हर बार एक अलग तत्व छोड़ा जाता है।

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Mathematics Answer, Explanation and Revision Hints

यदि \(A=\{1,2,3,4,5\}\) है तो (\mathcal{P}(A)) में कितने चार तत्व वाले उपसमुच्चय होंगे? / If \(A=\{1,2,3,4,5\}\), how many four element subsets are in (\mathcal{P}(A))?

Correct Answer: B. (5). Explanation: पांच तत्वों में से चार चुनने के (5) तरीके हैं। हर बार एक अलग तत्व छोड़ा जाता है। / There are (5) ways to choose four elements from five. Each time one different element is left out.

Which concept should I revise for this Mathematics MCQ?

There are (5) ways to choose four elements from five. Each time one different element is left out.

What exam hint can help solve this Mathematics question?

पांच तत्वों में से चार चुनने के (5) तरीके हैं। हर बार एक अलग तत्व छोड़ा जाता है।