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Is there any quick and easy way to choose number for testing? I am working on Manhattan GMAT CAT. There are loads of Number properties questions, most of them are very difficult and easy to cause confusion under time pressure.
Is there any rules that I can limit the numbers I choose? For example, if I am given a formula of a and b (where a and b can be any number), I will test the formula for the following:
a: positive integer, b: positive integer (smaller than a) a: positive integer, b: positive integer (larger than a) a: 0, b: positive integer a: positive integer b: 0 a: 0, b: 0 a: 0, b: negative integer a: negative integer b: 0 a: negative integer, b: negative integer (smaller than a) a: negative integer, b: negative integer (larger than a) 0a>-1, 0>b>-1 0b>-1 0>a>-1, 01. I also know if the formula contains a square, I should check for negative numbers. Is the any tricks which could help me on choosing numbers for testing?
Many thanks for your help!
Gordon
I WILL GIVE OUT KUDOS!
Archived Topic
Hi there,
This topic has been closed and archived due to inactivity or violation of community quality standards. No more replies are possible here.
Still interested in this question? Check out the "Best Topics" block below for a better discussion on this exact question, as well as several more related questions.
Is there any quick and easy way to choose number for testing? I am working on Manhattan GMAT CAT. There are loads of Number properties questions, most of them are very difficult and easy to cause confusion under time pressure.
Is there any rules that I can limit the numbers I choose? For example, if I am given a formula of a and b (where a and b can be any number), I will test the formula for the following:
a: positive integer, b: positive integer (smaller than a) a: positive integer, b: positive integer (larger than a) a: 0, b: positive integer a: positive integer b: 0 a: 0, b: 0 a: 0, b: negative integer a: negative integer b: 0 a: negative integer, b: negative integer (smaller than a) a: negative integer, b: negative integer (larger than a) 0a>-1, 0>b>-1 0b>-1 0>a>-1, 01. I also know if the formula contains a square, I should check for negative numbers. Is the any tricks which could help me on choosing numbers for testing?
Many thanks for your help!
Gordon
I WILL GIVE OUT KUDOS!
Show more
Here are a few posts that discuss how to pick numbers to plug:
By the way, the list of numbers that you would need to check for will keep changing (Real numbers less than -1, Real numbers between -1 and 0, Real numbers between 0 and 1, Real numbers greater than 1) . In fact, it is not a good idea to try to establish something by checking for numbers. It is ok to disprove something by finding the numbers for which it doesn't work.
Archived Topic
Hi there,
This topic has been closed and archived due to inactivity or violation of community quality standards. No more replies are possible here.
Still interested in this question? Check out the "Best Topics" block above for a better discussion on this exact question, as well as several more related questions.