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This was my conclusion after probing the updated GMAT Prep from MBA DOT COM and sitting shattered in the night but still pondering over - should my preparation with OG help me bettering my GMAT quant score?
I am afraid the answer would be NO. OG is not reliable source for improving the quant level and attain 'above average' score 47-48. The complicated content of number property type of problems, the word problems demanding swift reaction and hence home coaching made OG useless at some point during recent CATs I was trying. As a person with non-tech background wishing to excel in quant, I have to select the means other than OG.
I have finished all MGMAT math guides and looked into each problem explanation there. I have completed OG 11 word by word and sat for my GMAT Prep. The best score for quant I managed was 43. The GMAT Focus Online Quantitative Diagnostic Tool resulted in my upper ceiling score 39.
So pity my time spent in vane for OG...
I am afraid the answer would be NO. OG is not reliable source for improving the quant level and attain 'above average' score 47-48. The complicated content of number property type of problems, the word problems demanding swift reaction and hence home coaching made OG useless at some point during recent CATs I was trying. As a person with non-tech background wishing to excel in quant, I have to select the means other than OG.
I have finished all MGMAT math guides and looked into each problem explanation there. I have completed OG 11 word by word and sat for my GMAT Prep. The best score for quant I managed was 43. The GMAT Focus Online Quantitative Diagnostic Tool resulted in my upper ceiling score 39.
So pity my time spent in vane for OG...
My knowledge frontiers came to evolve the GMATPill's methods - the credited study means to boost the Verbal competence. I really like their videos, especially for RC, CR and SC. You do check their study methods at https://www.gmatpill.com

















