From the course: Test Prep: GRE

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Trial-and-error technique

Trial-and-error technique

From the course: Test Prep: GRE

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Trial-and-error technique

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- [Voiceover] So it's probably safe to say that some GRE math questions will not immediately make sense to you. That doesn't mean that you won't figure out a way to do them eventually. So in this video I'll talk about some situations in which trial-and-error might be your best bet. So the first situation involves questions in which you might not immediately see the logic. So don't be afraid to guess since each guess gives you more information about what to try next and then after a guess or two the logic might click. So let's look at this example here. We've got four consecutive integers have a sum of 1002. What is the largest of the four integers? So it's not pure logic. This is a question we could do algebraically but if you don't see how to do it algebraically you can just use logic to guess and check and this process might even take less time than it seems. So let's think about that. Logically speaking can't we make an educated guess here because there's four consecutive integers…

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