Formal:
* سلام، حالتان چطور است؟ (Salām, ḥālatān chetor est?)
* "Salām" is the standard greeting. "Ḥālatān" is the formal way of asking "how are you?" and "chetor est?" means "how is it?"
Informal:
* سلام، خوبی؟ (Salām, khoobi?)
* "Salām" is the standard greeting. "Khoobi" is the informal way of asking "how are you?"
Even More Informal:
* سلام، چطوری؟ (Salām, chetori?)
* This is a very informal way of asking "how are you?"
You can also use these common phrases:
* خوبم، شما چطور؟ (Khubam, shoma chetor?) - "I am good, and you?"
* ممنون، خوبم. (Mamanun, khoobam.) - "Thank you, I am good."
Important Note: The formal version is used when addressing someone older than you, someone you don't know well, or someone in a position of authority. The informal versions are used with friends, family, and people you know well.