Mathematics, 07.12.2019 02:31, smilebehappy468

Called ultimate addition, u(x) is defined to be the sum of all digit of an integer until the result is single digit integer. if m is a two-digit integer, how many possibility of m such that u(m) = u(50654)? a. 2 b. 5 c. 8 d. 10 e. 12

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Called ultimate addition, u(x) is defined to be the sum of all digit of an integer until the result...