Class 11 Mathematics Permutations and Combinations Derivations of formulas and their connections Expert Level 66

(10) people को round table पर बैठाना है और (A) तथा (B) के बीच clockwise exactly (3) people हों। Count क्या है?

(10) people are seated around a round table and exactly (3) people lie clockwise between (A) and (B). What is the count?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

A. (8!)

Step 1

Concept

After fixing (A), the position of (B) is fixed and the remaining (8) people are arranged. In exams fix one person in one-direction circular gap problems.

Step 2

Why this answer is correct

The correct answer is A. (8!). After fixing (A), the position of (B) is fixed and the remaining (8) people are arranged. In exams fix one person in one-direction circular gap problems.

Step 3

Exam Tip

(A) को fix करने पर (B) की position fixed हो जाती है और बाकी (8) people arrange होते हैं। परीक्षा में one-direction circular gap में one person fix करें।

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(10) people को round table पर बैठाना है और (A) तथा (B) के बीच clockwise exactly (3) people हों। Count क्या है? / (10) people are seated around a round table and exactly (3) people lie clockwise between (A) and (B). What is the count?

Correct Answer: A. (8!). Explanation: (A) को fix करने पर (B) की position fixed हो जाती है और बाकी (8) people arrange होते हैं। परीक्षा में one-direction circular gap में one person fix करें। / After fixing (A), the position of (B) is fixed and the remaining (8) people are arranged. In exams fix one person in one-direction circular gap problems.

Which concept should I revise for this Mathematics MCQ?

After fixing (A), the position of (B) is fixed and the remaining (8) people are arranged. In exams fix one person in one-direction circular gap problems.

What exam hint can help solve this Mathematics question?

(A) को fix करने पर (B) की position fixed हो जाती है और बाकी (8) people arrange होते हैं। परीक्षा में one-direction circular gap में one person fix करें।