from last few u mean around last 50 or less. and wat do u think about them r they more difficult than the ones in actual GMAT.?
thanks waiting for reply
Last few = 15-20. I remember the last 5-8 of them were particularly difficult. I found the questions on the actual gmat to be easier than my prep work.
Just do a random sampling. Take two questions every 20-25 questions and work with those. Get it? Do questions 1 and 2, then skip to 26 and 27 then 50 and 51. Keep going until the end and time yourself. When you are done, check which questions took you 2 minutes to do. Which questions took you less/more than 2 minutes. That should give you a good idea of where your math level is.