If the system of linear equations
x + ky + 3z = 0
3x + ky - 2z = 0 and
2x + 4y - 3z = 0
has a non-zero solution (x, y, z), then xz/y2 is equal to
1
-10
2
10
3
-30
4
30
If the system of linear equations
x + ky + 3z = 0
3x + ky - 2z = 0 and
2x + 4y - 3z = 0
has a non-zero solution (x, y, z), then xz/y2 is equal to