Question

i am a 5 digit number greater than 60,000 but less than 70,000 my ones digit 1 less than my 10,000 digit all my other digits are the same the sum of my digit are 23. What is my number?

Answer 1

so it must start with a 6
6X,XXX
The unit digit can only be 5
so we have 6XXX5
then 6 + 3X+5 = 23
3x = 12
x = 4

your number is 64445