2AB+ AB 1=B18 - Vidyadip

Question

$2AB+ AB 1=B18$

✓

Answer

$B = 7$ as $7 + 1 = 8.$
We want $8$ at unit place.
Now
$7 + A = 11$
$\therefore A = 11 - 7 = 4$
Hence $A = 4$ and $B = 7$
$247+471=718$

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