Hey, guys
Someone asked a while ago what the specific overlap is between OG 10 and OG11 and I just knew the overlap was large but didn't know the actual percentage.
Well, someone in our office has actually counted (how'd you like to have that job?
) and discovered that about 75% of the questions that were in OG10 show up in either OG11 or the math or verbal supplements. Of the nearly 1500 quesitons in the 3 "new" books, about 400 of them did not appear in OG10. The rest did.
We all knew there was a lot of overlap anyway, but now it's confirmed... not worth it to buy OG10.
Someone asked a while ago what the specific overlap is between OG 10 and OG11 and I just knew the overlap was large but didn't know the actual percentage.
Well, someone in our office has actually counted (how'd you like to have that job?
) and discovered that about 75% of the questions that were in OG10 show up in either OG11 or the math or verbal supplements. Of the nearly 1500 quesitons in the 3 "new" books, about 400 of them did not appear in OG10. The rest did.We all knew there was a lot of overlap anyway, but now it's confirmed... not worth it to buy OG10.
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Stacey Koprince
GMAT Instructor
Director of Online Community
Manhattan GMAT
Contributor to Beat The GMAT!
Learn more about me
Stacey Koprince
GMAT Instructor
Director of Online Community
Manhattan GMAT
Contributor to Beat The GMAT!
Learn more about me
so Stacey would you just confirm about it as whether my post is correct?
