(8) छात्रों में से (2) छात्रों को पुस्तकालय कार्य के लिए चुनना है। कितने चयन संभव हैं?

(2) students are to be selected from (8) students for library work. How many selections are possible?

Explanation opens after your attempt
Correct Answer

B. (28)

Step 1

Concept

This is \(\binom{8}{2}=28\). If the work is same, order is not counted in selection.

Step 2

Why this answer is correct

The correct answer is B. (28). This is \(\binom{8}{2}=28\). If the work is same, order is not counted in selection.

Step 3

Exam Tip

यह \(\binom{8}{2}=28\) है। कार्य समान हो तो चयन में क्रम नहीं गिना जाता।

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Mathematics Answer, Explanation and Revision Hints

(8) छात्रों में से (2) छात्रों को पुस्तकालय कार्य के लिए चुनना है। कितने चयन संभव हैं? / (2) students are to be selected from (8) students for library work. How many selections are possible?

Correct Answer: B. (28). Explanation: यह \(\binom{8}{2}=28\) है। कार्य समान हो तो चयन में क्रम नहीं गिना जाता। / This is \(\binom{8}{2}=28\). If the work is same, order is not counted in selection.

Which concept should I revise for this Mathematics MCQ?

This is \(\binom{8}{2}=28\). If the work is same, order is not counted in selection.

What exam hint can help solve this Mathematics question?

यह \(\binom{8}{2}=28\) है। कार्य समान हो तो चयन में क्रम नहीं गिना जाता।