Question
Replace $A, B, C$ by suitable numerals. $\underline{ \ \ \text{ A}\\\text{+A}\\\text{+A }}\\\underline{ \text{ BA } }$
✓
Answer
$A + A + A = A, 1$ is carried over. When, $A = 5 A + A +A = 15 (1$ carried over$) \Rightarrow B = 1$
$\therefore A = 5, B = 1$
$\therefore A = 5, B = 1$
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