A palindrome is a number that reads the same forward and backward, such as 121. How many odd, 4-digit numbers are palindromes?	Choose the correct choice from the following choices:	A) 40	B) 45	C) 50	D) 90	E) 2500

Rationale: 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 1 , 3,5 , 7,9 will be odd , which is 5 / 9 ths of the combinations . 5 / 9 * 90 = 50 answer : c
Answer: C