Question

A palindromic number or numeral palindrome is a number that remains the same when its digits are reversed. For example, 35 353 is palindromic number, but
14242 is not a palindrome. Determine how many positive integers consist of 5-digits palindromic that are divisible by 3.

Answer 1

@skullpatrol

Answer 2

@zzr0ck3r

Answer 3

@mathmate @mathmale

Answer 4

@Will.H

Answer 5

beautiful puzzle lol

Answer 6

I like puzzle. lol

Answer 7

This question is about combinatorics, The answer is 300
Just give me a clue how to find that answer..

Answer 8

I mean teach me how to get 300

Answer 9

There are too many tho
what's really important is that all the digits Must be divisible by 3
Such as 36363 is a palindromic number and it is divisible by 3
36363/3 = 1212 the result is also palindromic number.

i don't believe that we would be able to determine and count all the palindromic numbers that are divisible by 3

Answer 10

That's it what we need to do. If we know the pattern, it will be more easy to find how many are they

Answer 11

what you mean

Answer 12

Because palindrome number can be reverse, then A = E and B = D.
So what we need to do is to find what number we can fill on A and B.