A B - B 7 4 5 - Vidyadip

Question

$\underline{\ \ \ \text{A}\ \ \ \ \text{B}\\\text{-}\ \ \text{B}\ \ \ \ \text{7}\ }\\\underline{\ \ \ \ 4\ \ \ \ 5\ }$

✓

Answer

In one’s column $B - 7 = 5$
Clearly, $12 - 7 = 5$ so $B = 2$

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