In how many ways can the digits of 45,520 be arranged to form a 5-digit number that is even?
(20554, 24550, 25054, 25450, 25504, 25540, 40552, 42550, 45052, 45250, 45502, 45520, 50254, 50452, 50524, 50542, 52054, 52450, 52504, 52540, 54052, 54250, 54502, 54520, 55024, 55042, 55204, 55240, 55402, 55420) >>Total = 30 such permutations
