If the number of seven-digit numbers, such that the sum of their digits is even, is m \cdot n \cdot 10^n, m, n \in\{1,2,3, . . ., 9\}, then m+n is equal to \_\_\_\_ . [3 Apr 2025 Shift 1]

Permutations and Combinations Part 2

Section: Mathematics

Question : 18 of 110

Marks: +1, -0

If the number of seven-digit numbers, such that the sum of their digits is even, is m⋅n⋅10n,m,n∈{1,2,3,...,9}, then m+n is equal to ____ .

[3 Apr 2025 Shift 1]

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