(7) अलग-अलग प्रमाणपत्रों को एक पंक्ति में सजाने के कुल तरीके कितने हैं?
How many total ways are there to arrange (7) different certificates in a row?
Explanation opens after your attempt
A. (5040)
Concept
The arrangement of (7) distinct objects is (7!=5040). Use factorial when all objects are distinct.
Why this answer is correct
The correct answer is A. (5040). The arrangement of (7) distinct objects is (7!=5040). Use factorial when all objects are distinct.
Exam Tip
(7) अलग वस्तुओं की व्यवस्था (7!=5040) होती है। सभी वस्तुएँ अलग हों तो factorial लगाएं।
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