MBA.com mini GMAT Quiz result

Guys, I just took mba com's mini GMAT Quiz online & out of 8 questions I answered two questions were wrong.....but on published result sheet I see only one is right answer & my estimated score between 220-260........does this result referring to only one question being right or 6 out of eight is right but the questions were too easy (not to me though) & that's how they calculated the result ?

So, let's say that, I answered 6 correct from 8......what would be my score ? 220-260 or more ?

Please, let me know.

Thanks