A palindrome is a number that reads the same forward and backward, such as 616. How many even, 4-digit numbers are palindromes?	Choose the correct choice from the following answers:
A) 40
B) 45
C) 50
D) 90
E) 2500
First recognize you only need to consider the first two digits (because the second two are just the first two flipped)   There are 90 possibilities for the first two digits of a 4 digit number, 10-99 inclusive. Everything starting with a 2,4,6,8 will be odd, which is 4/9ths of the combinations.   4/9*90= 
<gadget id="calculator">4/9*90</gadget>
<output>40</output>
40   40NSWER:40
<result>A</result>
A palindrome is a number that reads the same forward and backward, such as 616. How many even, 4-digit numbers are palindromes?