Let A and B be non-zero digits, $$\begin{array} { r } A B 8 \\ - \quad A B \\ \hline 49 B \end{array}$$ Accordingly, what is the sum $\mathrm { A } + \mathrm { B }$? A) 9 B) 10 C) 11 D) 12 E) 13
Let A and B be non-zero digits,
$$\begin{array} { r } A B 8 \\ - \quad A B \\ \hline 49 B \end{array}$$
Accordingly, what is the sum $\mathrm { A } + \mathrm { B }$?
A) 9
B) 10
C) 11
D) 12
E) 13