hi,first of all i apologize for posting this here.don't know exactly where to post this kind of query.

i gave princeton review test today,free online one.
i want to know if someone has any idea how accurate their scoring algorithm is,because i scored a miserable 660 in it.

the quant was the easiest i have ever seen,way easier than in those of mgmat. i took me 35 minutes to finish the quant.

verbal was good,similar to mgmat.

but here is the problem-
i just got 2 questions out of 37 wrong in quant and got 45.
i dont understand how.
verbal was okay.
10 wrong and got 37.
but i am still in dilemma as what to make out of this score.