(10) अलग-अलग वस्तुओं में से (4) को एक पंक्ति में सजाने की संख्या क्या है?

What is the number of ways to arrange (4) objects selected from (10) distinct objects in a row?

Explanation opens after your attempt
Correct Answer

A. (5040)

Step 1

Concept

This is \(^{10}P_4=10\cdot9\cdot8\cdot7=5040\). In exams, selected and arranged means use \(nP_r\).

Step 2

Why this answer is correct

The correct answer is A. (5040). This is \(^{10}P_4=10\cdot9\cdot8\cdot7=5040\). In exams, selected and arranged means use \(nP_r\).

Step 3

Exam Tip

यह \(^{10}P_4=10\cdot9\cdot8\cdot7=5040\) है। परीक्षा में selected and arranged हो तो \(nP_r\) लगाएं।

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(10) अलग-अलग वस्तुओं में से (4) को एक पंक्ति में सजाने की संख्या क्या है? / What is the number of ways to arrange (4) objects selected from (10) distinct objects in a row?

Correct Answer: A. (5040). Explanation: यह \(^{10}P_4=10\cdot9\cdot8\cdot7=5040\) है। परीक्षा में selected and arranged हो तो \(nP_r\) लगाएं। / This is \(^{10}P_4=10\cdot9\cdot8\cdot7=5040\). In exams, selected and arranged means use \(nP_r\).

Which concept should I revise for this Mathematics MCQ?

This is \(^{10}P_4=10\cdot9\cdot8\cdot7=5040\). In exams, selected and arranged means use \(nP_r\).

What exam hint can help solve this Mathematics question?

यह \(^{10}P_4=10\cdot9\cdot8\cdot7=5040\) है। परीक्षा में selected and arranged हो तो \(nP_r\) लगाएं।