logro
Hey Guys - How much of overlap exists between the subsequent OG guides? Can i work on OG12, OG15, OG18 and OG21 and have a unique set of questions?
Hi there. There is meaningful overlap between the OG's
OG 12 and OG 2015 overlap by about 80% and OG 18 and OG21 overlap maybe 70%
Keep in mind that many of the OG 12 and OG 2015 questions are found in the GMAT Prep tests so you will be inflating your score and somewhat shooting yourself in the foot if you have not taken the GMAT Prep tests yet.
FYI - I took the GMAT without even owning an OG (any kind) and somehow managed to finagle a 750. While that was a colossal mistake, and I don't recommend it, I am a living proof that going through thousands of questions is NOT the only path to a high score. You can just know your material well without attempting 3,600 questions found in the 4 OG's.