(7) अलग-अलग विद्यार्थियों में से (3) को भाषण के क्रम में बुलाना है। कितने तरीके हैं?

From (7) distinct students, (3) are to be called in speaking order. How many ways are possible?

Explanation opens after your attempt
Correct Answer

B. (210)

Step 1

Concept

The speaking order gives different outcomes, so \(^{7}P_3=210\). In exams, treat performance order as permutation.

Step 2

Why this answer is correct

The correct answer is B. (210). The speaking order gives different outcomes, so \(^{7}P_3=210\). In exams, treat performance order as permutation.

Step 3

Exam Tip

भाषण का क्रम अलग परिणाम देता है, इसलिए \(^{7}P_3=210\)। परीक्षा में performance order को permutation मानें।

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Mathematics Answer, Explanation and Revision Hints

(7) अलग-अलग विद्यार्थियों में से (3) को भाषण के क्रम में बुलाना है। कितने तरीके हैं? / From (7) distinct students, (3) are to be called in speaking order. How many ways are possible?

Correct Answer: B. (210). Explanation: भाषण का क्रम अलग परिणाम देता है, इसलिए \(^{7}P_3=210\)। परीक्षा में performance order को permutation मानें। / The speaking order gives different outcomes, so \(^{7}P_3=210\). In exams, treat performance order as permutation.

Which concept should I revise for this Mathematics MCQ?

The speaking order gives different outcomes, so \(^{7}P_3=210\). In exams, treat performance order as permutation.

What exam hint can help solve this Mathematics question?

भाषण का क्रम अलग परिणाम देता है, इसलिए \(^{7}P_3=210\)। परीक्षा में performance order को permutation मानें।