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ssy
- Senior | Next Rank: 100 Posts
- Posts: 66
- Joined: Sat Sep 29, 2007 7:17 pm
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- GMAT Score:660
I've just come across these set formulas in past posts. Can someone please explain the difference between these 2 formulas (if there is a difference) and how to use them? Is this all or are there more set formulas which would be helpful?
Total = Group1 + Group2 + Group3 - (sum of 2-group overlaps) - 2*(all three) + Neither
Total = A + B + C - 2*(all3) - (only two)
How do we calculate "All three", "Neither" and "Only two"?
Thank you!
Total = Group1 + Group2 + Group3 - (sum of 2-group overlaps) - 2*(all three) + Neither
Total = A + B + C - 2*(all3) - (only two)
How do we calculate "All three", "Neither" and "Only two"?
Thank you!
