If the median and the range of four numbers $\{ x , y , 2 x + y , x - y \}$, where $0 < y < x < 2 y$, are 10 and 28 respectively, then the mean of the numbers is : (1) 18 (2) 10 (3) 5 (4) 14
If the median and the range of four numbers $\{ x , y , 2 x + y , x - y \}$, where $0 < y < x < 2 y$, are 10 and 28 respectively, then the mean of the numbers is :\\
(1) 18\\
(2) 10\\
(3) 5\\
(4) 14