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प्रश्न
If 
then A = ______ and B = ______.
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उत्तर
If then A = 6 and B = 3.
Explanation:
2 B
We have, + A B
8 A
Here, B can take values from 0 to 9.
For B = 0, A = 0, which does not fit in tens column
For B = 1, A = 2, which does not fit in tens column
For B = 3, A = 6, which satisfies the tens column.
Hence, A = 6 and B = 3
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