(8) अलग-अलग वस्तुओं को एक पंक्ति में रखना है। यदि एक विशेष वस्तु हमेशा पहले स्थान पर रहे तो व्यवस्थाएं कितनी होंगी?

(8) distinct objects are to be arranged in a row. If one particular object is always in the first position, how many arrangements are possible?

Explanation opens after your attempt
Correct Answer

A. (5040)

Step 1

Concept

The first position is fixed, so the remaining (7) objects are arranged in (7!) ways. The answer is (5040).

Step 2

Why this answer is correct

The correct answer is A. (5040). The first position is fixed, so the remaining (7) objects are arranged in (7!) ways. The answer is (5040).

Step 3

Exam Tip

पहला स्थान निश्चित है, इसलिए शेष (7) वस्तुएं (7!) तरीकों से रखें। उत्तर (5040) है।

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(8) अलग-अलग वस्तुओं को एक पंक्ति में रखना है। यदि एक विशेष वस्तु हमेशा पहले स्थान पर रहे तो व्यवस्थाएं कितनी होंगी? / (8) distinct objects are to be arranged in a row. If one particular object is always in the first position, how many arrangements are possible?

Correct Answer: A. (5040). Explanation: पहला स्थान निश्चित है, इसलिए शेष (7) वस्तुएं (7!) तरीकों से रखें। उत्तर (5040) है। / The first position is fixed, so the remaining (7) objects are arranged in (7!) ways. The answer is (5040).

Which concept should I revise for this Mathematics MCQ?

The first position is fixed, so the remaining (7) objects are arranged in (7!) ways. The answer is (5040).

What exam hint can help solve this Mathematics question?

पहला स्थान निश्चित है, इसलिए शेष (7) वस्तुएं (7!) तरीकों से रखें। उत्तर (5040) है।