Question

Replace A, B, C by suitable numerals.
$$\begin{gathered} \begin{array}{ccccc}& 4& C& B& 6\\ +& 3& 6& 9& A\end{array} \\ \overline{\underline{\overline{\underline{\begin{array}{ccccc}& 8& 1& 7& 3\end{array}}}}} \end{gathered}$$

Answer 1

$A=7,A+6=7+6=13$ (1 is carried over)

$(1+B+9)=17,orB=7$ (1 is carried over)

$A=7,B=7andC=4$ (1 is carried over)

∴ $A=7,B=7andC=4$