Digits (0,1,2,3,4,5,6,7,8) से repetition बिना (5)-digit even numbers में non-zero even last digit case का count क्या है?
Using digits (0,1,2,3,4,5,6,7,8) without repetition, what is the count for (5)-digit even numbers with a non-zero even last digit?
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A. \(4\cdot7\cdot{}^{7}P_3\)
Simple Explanation
Last digit के (4) choices हैं, first digit के (7) non-zero choices बचते हैं, फिर (3) places fill होती हैं। परीक्षा में zero और non-zero even cases अलग करें। / There are (4) choices for the last digit, (7) remaining non-zero choices for the first digit, and then (3) places are filled. In exams separate zero and non-zero even cases.
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