The sum of the four digit even numbers that can be formed with the digits 0,3,5,4 with out repetition is 
 

$$\begin{gathered} \text{ Four digit numbers which are even and formed with the digits }0,3,5,4 \\ \text{ without recepetion are } \end{gathered}$$

$\begin{array}{r}3054,3504,5034,5304,3450,3540\\ 4350,4530,5340,5430\end{array}$

$\begin{array}{r}\mathrm{required} \mathrm{sum}=3054+3504+5034+5304+3450\\ +3540+4350+4530+5340+5430=43536\end{array}$