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Playing with Numbers — MATHS STD 8 — Question

Gujarat BoardEnglish MediumSTD 8MATHSPlaying with Numbers1 Mark
Question
Solve Cryptarithms.
$\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 2\ \ \ \ \text{A} \ \ \ \ \text{B}\ \ \ \ \ \ \ \\ \ \ \ \ \ \ \ \ \ \ \underline{+\ \ \ \ \text{A}\ \ \ \ \text{B}\ \ \ \ \ 1\ \ }\\\ \ \ \ \ {\ \ \ \ \ \ \ \ \ \ \ \ \ \text{B}\ \ \ \ 0\ \ \ \ \ 1}$
✓

Answer

B + 1 = 8, B = 7A + 1, A + 7 = 1, A = 4
So, A = 4, b = 7

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