अंकों (1,2,3,4,5,6) से बिना पुनरावृत्ति (3) अंकों की कितनी संख्याएं (400) से बड़ी होंगी?
How many (3)-digit numbers greater than (400) can be formed from (1,2,3,4,5,6) without repetition?
Explanation opens after your attempt
C. (36)
Concept
The hundreds place can be (4,5,6), and the remaining places have \(5\cdot4\) ways. The total is \(3\cdot5\cdot4=60\).
Why this answer is correct
The correct answer is C. (36). The hundreds place can be (4,5,6), and the remaining places have \(5\cdot4\) ways. The total is \(3\cdot5\cdot4=60\).
Exam Tip
सैकड़े के स्थान पर (4,5,6) हो सकते हैं और बाकी \(5\cdot4\) तरीके हैं। कुल \(3\cdot5\cdot4=60\) है।
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