Picking random variable in an array

[Ofel]

x[1] = 50
x[2] = 52
x[3] = 54
x[4] = 56
x[5] = 58

I have these five array variables and I want to pick each one by random without picking it back twice or more.
How do I achieve this? Thanks in advance.

 

[Ofel]

Mistakenly double posted. Please delete this one instead.