Could someone check my answer .Need to find the primary voltage and current of transformer. I have done work on calc and have come up with the following answer 120 v 4a. The secondary side of transformer has output of 24 v and 20a the turn ratio is 5:1

 

Looks good to me.
And what is the Va rating?
Max.

 

the current and voltage are inverse aren't they, it looks right to me