(8) विद्यार्थियों में से (3) चुनकर उन्हें पंक्ति में बैठाने का expression कौन-सा है?

Which expression represents choosing (3) students from (8) and arranging them in a row?

Explanation opens after your attempt
Correct Answer

A. \(^{8}C_3\times3!\)

Step 1

Concept

First choose (3) students and then arrange them in (3!) ways. In exams multiply when arrangement follows selection.

Step 2

Why this answer is correct

The correct answer is A. \(^{8}C_3\times3!\). First choose (3) students and then arrange them in (3!) ways. In exams multiply when arrangement follows selection.

Step 3

Exam Tip

पहले (3) विद्यार्थी चुनें और फिर (3!) तरीकों से जमाएँ। परीक्षा में चयन के बाद व्यवस्था हो तो multiplication करें।

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Mathematics Answer, Explanation and Revision Hints

(8) विद्यार्थियों में से (3) चुनकर उन्हें पंक्ति में बैठाने का expression कौन-सा है? / Which expression represents choosing (3) students from (8) and arranging them in a row?

Correct Answer: A. \(^{8}C_3\times3!\). Explanation: पहले (3) विद्यार्थी चुनें और फिर (3!) तरीकों से जमाएँ। परीक्षा में चयन के बाद व्यवस्था हो तो multiplication करें। / First choose (3) students and then arrange them in (3!) ways. In exams multiply when arrangement follows selection.

Which concept should I revise for this Mathematics MCQ?

First choose (3) students and then arrange them in (3!) ways. In exams multiply when arrangement follows selection.

What exam hint can help solve this Mathematics question?

पहले (3) विद्यार्थी चुनें और फिर (3!) तरीकों से जमाएँ। परीक्षा में चयन के बाद व्यवस्था हो तो multiplication करें।