\(^{n}P_r\) को ordered arrangement मानने का सबसे अच्छा संकेत कौन-सा शब्द है?
Which word is the best signal to treat \(^{n}P_r\) as ordered arrangement?
Explanation opens after your attempt
Correct Answer
D. रैंकRank
Concept
Changing rank changes the result so order is important. In exams use permutation when rank or post appears.
Why this answer is correct
The correct answer is D. रैंक / Rank. Changing rank changes the result so order is important. In exams use permutation when rank or post appears.
Exam Tip
Rank बदलने से result बदल जाता है इसलिए order important है। परीक्षा में rank या post दिखे तो permutation लगाएँ।
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