(6) अलग-अलग मेजों पर (2) विद्यार्थियों को बैठाने के तरीके कितने हैं?

In how many ways can (2) students be seated at (6) different desks?

Explanation opens after your attempt
Correct Answer

D. (30)

Step 1

Concept

The desks are distinct, so \({}^{6}P_{2}=6\times5=30\). Order is counted when seating at distinct places.

Step 2

Why this answer is correct

The correct answer is D. (30). The desks are distinct, so \({}^{6}P_{2}=6\times5=30\). Order is counted when seating at distinct places.

Step 3

Exam Tip

मेजें अलग हैं इसलिए \({}^{6}P_{2}=6\times5=30\)। अलग स्थानों पर बैठाने में क्रम गिना जाता है।

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Mathematics Answer, Explanation and Revision Hints

(6) अलग-अलग मेजों पर (2) विद्यार्थियों को बैठाने के तरीके कितने हैं? / In how many ways can (2) students be seated at (6) different desks?

Correct Answer: D. (30). Explanation: मेजें अलग हैं इसलिए \({}^{6}P_{2}=6\times5=30\)। अलग स्थानों पर बैठाने में क्रम गिना जाता है। / The desks are distinct, so \({}^{6}P_{2}=6\times5=30\). Order is counted when seating at distinct places.

Which concept should I revise for this Mathematics MCQ?

The desks are distinct, so \({}^{6}P_{2}=6\times5=30\). Order is counted when seating at distinct places.

What exam hint can help solve this Mathematics question?

मेजें अलग हैं इसलिए \({}^{6}P_{2}=6\times5=30\)। अलग स्थानों पर बैठाने में क्रम गिना जाता है।