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How many (6)-digit numbers can be formed from digits (0,1,2,3,4,5,6,7,8,9) without repetition if the first (3) digits are increasing and the last (3) digits are decreasing?अंकों (0,1,2,3,4,5,6,7,8,9) से बिना पुनरावृत्ति कितनी (6)-अंकीय संख्याएं बनेंगी जिनमें पहले (3) अंक बढ़ते क्रम में और अंतिम (3) अंक घटते क्रम में हों?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (2940)(2940)
The order is fixed within the chosen positions, but the first digit cannot be (0). In such restrictions, check both order and leading zero.चुने हुए स्थानों में क्रम निश्चित हो जाता है, लेकिन पहला अंक (0) नहीं हो सकता। ऐसी शर्तों में क्रम-प्रतिबंध और अग्र शून्य दोनों जांचें।
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