Questions
The number of nine nonzero digits such that all the digits in the first four places are less than the digit in the middle and all the digits in the last four places are greater than that in the middle is
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Correct option is D
According to given conditions, numbers can be formed by the following format:The required number of numbers is 4P4×4P4.Similar Questions
The total number of 5-digit numbers of different digits in which the digit in the middle is the largest is
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