अंकों (3,4,5,6) से बिना पुनरावृत्ति कितनी (3)-अंकीय संख्याएँ बन सकती हैं?
How many (3)-digit numbers can be formed from digits (3,4,5,6) without repetition?
Explanation opens after your attempt
A. (24)
Concept
For three places, there are \(4\times3\times2=24\) ways. Without repetition, choices decrease at each next place.
Why this answer is correct
The correct answer is A. (24). For three places, there are \(4\times3\times2=24\) ways. Without repetition, choices decrease at each next place.
Exam Tip
तीन स्थानों के लिए \(4\times3\times2=24\) तरीके हैं। बिना पुनरावृत्ति में हर अगले स्थान पर विकल्प घटता है।
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