Problem Solving

Hi Guys - I recently took my GMAT after 2 weeks of preparation and didn't score well. I struggled in mainly 4 types of problems (as below) -

- Coordinate Geo
- Permutation and combinations
- Probability
- Sentence correction

I decided to re-take my GMAT and need to score 650+ - Would appreciate BTG people (instructors and others) ideas/suggestions/materials to sharkpen my skills/knowledge about the above topics. Thanks !

For SC- refer to the MGMAT SC Strategy Guide; it is a must have resource if you want to master the concepts.

For Permutations/Combination problems, perhaps you can refer to the 'Thursdays with Ron' series (https://www.manhattangmat.com/thursdays-with-ron.cfm)

Good luck!

Hi OMGGMAT!

Here are a few links you might find helpful!

- Coordinate Geometry

https://mathworld.wolfram.com/topics/Coo ... metry.html

- Permutation and combinations/Probability

https://www.manhattangmat.com/strategy-s ... bility.cfm

https://gmatclub.com/blog/2010/02/knewto ... inatorics/

- Sentence correction

Sadly, no shortcut here. You need to familiarize yourself the all of the common errors. The MGMAT SC book is a good idea, but you might like a supplemental grammar work.

https://www.beatthegmat.com/spidey-s-sen ... s-t25.html

Hope this helps!