[tex]{\bold {\large{SOLUTION}}}[/tex]Represent the number to be [tex]\sf{20000 < x < 50000}[/tex]Numbers are not repeated, we will use the numbers 0,2,4,6,8.The digits in the tens place will be has the least value which will be 0[tex]\sf{abc0e}[/tex]The next two digits where the thousands place is twice the digit in the ones place[tex]\sf{a8c04}[/tex]Finally since the number is more than 20000 but less than 60000 we will use 2 for the ten thousands place[tex]\Large \color{green} \boxed{\textsf{28604}}[/tex]