Hello I am new in the site , in this section problems you speak about are very difficult , I bought the kaplan 2012 / 2013 and in the final part there is a test , I scored 80 percentil in math part , but the exercise are really easier than yours , I have never takes the real Gmat , so I would like to know if the average difficult of this section is like my book or like yours exercise , I am not looking for 720 score , just 620 would be enought for my school , I hope some expert can answer me , thank you very much !!! If kaplan is not a good book for practice anyone knows a good one ???
Thank you filippo