grammaticality - "Where are you now at?" — grammatically correct?

Should I say "Where are you at now?" or "Where are you now at?"

Which is grammatically correct? And is there any difference in meaning between the two?

Answer

Both are possible in speech, although the first is probably more likely. They can be:

a) an inquiry about someone's location;

b) an inquiry about someone's mental, spiritual or emotional state; or

c) an inquiry about which page someone has reached in a book.