(5) अलग-अलग चाबियों को एक की-रिंग में सीधी सूची के रूप में लिखने पर कितने क्रम होंगे?
If (5) different keys are written as a straight list, how many orders are possible?
Explanation opens after your attempt
D. (120)
Concept
In a straight list, the arrangement of (5) distinct objects is (5!=120). Do not use circular counting here.
Why this answer is correct
The correct answer is D. (120). In a straight list, the arrangement of (5) distinct objects is (5!=120). Do not use circular counting here.
Exam Tip
सीधी सूची में (5) अलग वस्तुओं की व्यवस्था (5!=120) है। यहाँ circular counting नहीं करनी है।
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