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All five digit odd numbers formed using digits 0, 1, 2, 3, 4, 5 (without repeating any digit) are arranged in increasing order. Let sum of all digits of 151th number be 'a'. Value of a-7 is

Answer» All five digit odd numbers formed using digits 0, 1, 2, 3, 4, 5 (without repeating any digit) are arranged in increasing order. Let sum of all digits of 151th number be 'a'. Value of a-7 is


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