अंकों (0,2,4,6,8) से बिना पुनरावृत्ति (3)-अंकीय सम संख्याएं कितनी बन सकती हैं?
Using the digits (0,2,4,6,8) without repetition how many (3)-digit even numbers can be formed?
Explanation opens after your attempt
D. (52) संख्याएं(52) numbers
Concept
If the last digit is (0) there are \(4 \times 3=12\) ways and if it is non-zero even there are \(4 \times 3 \times 3=36\) ways. The total is (12+36=48).
Why this answer is correct
The correct answer is D. (52) संख्याएं / (52) numbers. If the last digit is (0) there are \(4 \times 3=12\) ways and if it is non-zero even there are \(4 \times 3 \times 3=36\) ways. The total is (12+36=48).
Exam Tip
अंतिम अंक (0) हो तो \(4 \times 3=12\) और अंतिम अंक गैर-शून्य सम हो तो \(4 \times 3 \times 3=36\) तरीके हैं। कुल (12+36=48) है।
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