Digits (0,1,2,3,4,5) से repetition allowed (3)-digit numbers बनते हैं। Count क्या होगी?
(3)-digit numbers are formed from digits (0,1,2,3,4,5) with repetition allowed. What is the count?
Explanation opens after your attempt
B. \(5\cdot6\cdot6\)
Concept
The first digit cannot be (0), and the remaining two places have (6) choices. In exams handle the leading-zero restriction separately.
Why this answer is correct
The correct answer is B. \(5\cdot6\cdot6\). The first digit cannot be (0), and the remaining two places have (6) choices. In exams handle the leading-zero restriction separately.
Exam Tip
First digit (0) नहीं हो सकती, बाकी दो places पर (6) choices हैं। परीक्षा में leading zero restriction अलग रखें।
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