Digits (0,1,2,3,4,5,6,7,8,9) से repetition बिना (6)-digit numbers बनते हैं और number even हो। (0) last digit case का count क्या है?
Using digits (0,1,2,3,4,5,6,7,8,9) without repetition, (6)-digit even numbers are formed. What is the count when (0) is the last digit?
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A. \(^{9}P_5\)
Simple Explanation
Last digit (0) fix होने पर first place पर zero issue नहीं रहता और (9) non-zero digits से (5) places भरते हैं। परीक्षा में zero-last case अलग करें। / When the last digit is fixed as (0), there is no leading-zero issue and (5) places are filled from (9) non-zero digits. In exams separate the zero-last case.
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