Q: How many 3 digit palindromes are divisible by 9?

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There are 10 3-digit odd palindromes that are divisible by five.

90 of them.

90

90

For there to be palindromes, each digit must be replicated. Therefore there are at most three distinct digits.If there are 3 pairs of different digits, then there are 6 palindromes. If there can be more duplicate digits, then there are 27 palindromes.

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There are 10 3-digit odd palindromes that are divisible by five.

90 of them.

90

90

Five of them.

For there to be palindromes, each digit must be replicated. Therefore there are at most three distinct digits.If there are 3 pairs of different digits, then there are 6 palindromes. If there can be more duplicate digits, then there are 27 palindromes.

There are 180 3-digit numbers divisible by five.

There are 151 3-digit numbers that are divisible by 6.

None. 3 digit numbers are not divisible by 19 digit numbers.

There is: 101,111,121,131,141,151,161,171,181,191 202,212,222,etc... 999 There are 90 palindromic 3 digit numbers

Converse:If a number is divisible by 3, then every number of a digit is divisible by three. Inverse: If every digit of a number is not divisible by 3 then the number is not divisible by 3? Contrapositive:If a number is not divisible by 3, then every number of a digit is not divisible by three.

How many two digit number are divisible by 5