Mathematics
Write all possible two-digit numbers using the digits 4 and 0. Repetition of digits is allowed.
Answer
We are required to write 2-digit numbers using the digits 4 and 0, where repetition of digits is allowed.
The digit 0 cannot be at the ten's place because that would make the number only 1-digited.
Keeping 4 at ten's place, the 2-digit numbers are 40 and 44.
Hence, all possible 2-digit numbers are 40 and 44.
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