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How many (2)-digit even numbers can be formed from digits (1,2,3,4,6) without repetition?अंकों (1,2,3,4,6) से बिना पुनरावृत्ति कितनी (2)-अंकीय सम संख्याएँ बनेंगी?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (12)(12)
The units place has (3) choices from (2,4,6), and the tens place has (4) choices, total (12). For even numbers, check the units place first.इकाई स्थान पर (2,4,6) में से (3) विकल्प और दहाई पर (4) विकल्प हैं, कुल (12)। even number में इकाई स्थान पहले देखें।
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