Set S consists of all positive integers

Set S consists of all positive integers less than 81 that are not equal to the square of an integer. Quantity A : The number of integers in Set S Quantity B : 72 Quantity A is greater., Quantity B is greater., The two quantities are equal., The relationship cannot be determined from the information given.

3 Explanations

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Yosef Lewis

Thanks Kevin! The video made me laugh :)

Apr 23, 2014 • Comment

Kevin Rocci, Magoosh Tutor

Apr 25, 2014 • Reply

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Yosef Lewis

1 is the loneliest number. Don't forget to include 1! :)

Apr 15, 2014 • Comment

Kevin Rocci, Magoosh Tutor

True, Yosef!

https://www.youtube.com/watch?v=d5ab8BOu4LE

And for more information on picking numbers, here is a good article to look at:

http://magoosh.com/gre/2011/gre-math-review-quiz-plugging-in/

Apr 18, 2014 • Reply

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Chris Lele, Magoosh Tutor

Oct 7, 2012 • Comment

ANMOL SETH

why is 0 not included?

Sep 14, 2016 • Reply

Cydney Seigerman, Magoosh Tutor

Hi Anmol,

Happy to help! Zero is not included because zero is not a positive integer. Zero is not a negative integer either! In fact, 0 is non-negative and non-positive. It's the only number that's considered "neutral" meaning it's neither negative nor positive. That means if you ever see a problem with the wording referring to "all positive integers", then 0 is absolutely not included :)

Hope this helps! :D

Sep 14, 2016 • Reply

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Set S consists of all positive integers

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Official GRE Material

Set 3. Discrete Questions: Hard

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