अंकों (0,1,2,3,4,5,6) से बिना पुनरावृत्ति (3)-अंकीय विषम संख्याएं कितनी बनेंगी?
Using the digits (0,1,2,3,4,5,6) without repetition how many (3)-digit odd numbers can be formed?
Explanation opens after your attempt
B. (90) संख्याएं(90) numbers
Concept
There are (3) choices (1,3,5) for the unit place and (5) non-zero choices remain for the hundred place. The total is \(3 \times 5 \times 5=75\).
Why this answer is correct
The correct answer is B. (90) संख्याएं / (90) numbers. There are (3) choices (1,3,5) for the unit place and (5) non-zero choices remain for the hundred place. The total is \(3 \times 5 \times 5=75\).
Exam Tip
इकाई स्थान के लिए (1,3,5) के (3) विकल्प हैं और सैकड़ा स्थान पर (5) गैर-शून्य विकल्प बचते हैं। कुल \(3 \times 5 \times 5=75\) है।
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