A palindrome is a number that reads the same forward and backward, such as 242. How many even seven-digit numbers are palindromes?	Choices
A) 40
B) 4000
C) 500
D) 5,000
E) 100,000
if the palindrome must be even, it must begin and end in 2,4 6 and 8 ( 4 ways) e.g 2221222,4441444.   The middle number in the seven-digit could be 0-9 ( 10 ways), e.g 2225222, 2228222   The 2nd and fourth numbers could must also be same i.e 0-9( 10 ways) e.g 2234322, 2856582   The 3rd and fifth numbers could must also be same i.e 0-9( 10 ways) e.g 2234322, 2856582   we thus have, 4 *10**10*10 = 4000.4000
<result>B</result>
A palindrome is a number that reads the same forward and backward, such as 242. How many even seven-digit numbers are palindromes?