Mathematics, 10.10.2020 15:01, moneywaydaedae

The first and third digits of a three-digit number are the same. If the second
digit is equal to the sum of the first and
third digits, then the number must be
divisible by 11.
How can he determine whether the conjecture
is true?

The first and third digits of a three-digit

number are the same. If the second
digit is equal to

Answers: 2

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The first and third digits of a three-digit number are the same. If the second
digit is equal...