A palindrome number is one that reads the same both forwards and backwards- for instance. 797 or 44. How many palindromic numbers are there between:

Question

a) 10 and 400
b) 10 and 1000

Thanks

Answer 1

what is a?

Answer 2

Sorry,

a) 10 and 400
b) 10 and 1000

Answer 3

im not sure im typing as i find them.
A=total of counting the numbers 11,22,33,44,55,66,77,88,99,101,202,303

B) = total counting the numbers
11,22,33,44,55,66,77,88,99,101,202,303,404,505,606,707,808,909

Answer 4

Mark is right, but for numbers of the form x0x, you can of course use any digit, not just zero, so

101

also implies

111, 121, 131,....