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प्रश्न
If A × 3 = 1A, then A = ______.
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उत्तर
If A × 3 = 1A, then A = 5.
Explanation:
We have, A
× 3
1A
Here, 3 × A is a two-digit number whose unit digit is A.
A can take any value between 0 to 9, but only A = 5 satisfies the product.
Hence, A = 5
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