Hi there, thank you for the material. Would like to clarify whether a premise as an answer choice is acceptable or not for "Must Be True" type questions?
There are differing comments in the pdf. "There are some answer choices that will reinforce or repeat the premise instead of the conclusion. In the Main Point and “Must be True” question types you need answer choices that restate the conclusion in a different way, and support the conclusion, not the premise."
- pg7 vs pg 9.
With an attractive title like that, it's surprising you're even reading this. I started preparing for the GMAT with the CR section and went through at least three different strategy guides before putting together my own document with the best strategies in them.
The document I've attached here basically contains a comprehensive list of question types, identification techniques, approach techniques and correct/incorrect answer choice justifications. I've also included two examples for each of the types I've mentioned.
I am also a big color junkie. If it doesn't look good, I don't like reading it, so I made it as colorful and lively as I could. And I thought I should share it with you guys, should it help anyone at all.
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Disclaimer: I have just shared my understanding of various strategies and I have used examples from several other sources, all of which are listed in the document itself. This is merely meant to help people out with understanding the concepts. It's NOT a substitute to the guide book. So don't sue me!

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Recommendation: Go buy the Powerscore CR and Veritas CR Guides. Both of them are excellent sources of problems and strategies. The Powerscore CR Bible clearly explains what I've summarized here and Veritas has some examples that illustrate the strategies very efficiently!
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