How to Beat Overlapping Sets GMAT Problems

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In "How to Beat Overlapping Sets GMAT Problems", Erika John from PrepScholar GMAT discusses the number one strategy to conquer some particularly hard GMAT math questions: overlapping sets problems.
We start off by defining overlapping sets GMAT problems so you can recognize them on test day: they are word problems that deal with one large group that is being evaluated for multiple traits. This in essence breaks our larger group into many smaller groups with different combinations of traits.
We then delve onto our key strategy for overlapping sets GMAT problems: using a diagram to organize the information in the problem, clarify the relationships between our smaller groups, and build equations we can then use to solve.
On overlapping sets GMAT problems where our larger group is being evaluated for two traits, we use a specific type of diagram called a "double matrix", which we explain how to create on your scratch paper. We also use a real overlapping sets GMAT question to illustrate how to set up our double matrix and then use it to solve.
Finally we talk about how to set up a diagram for the really hard GMAT math questions in which our overlapping sets involve evaluating for three or more traits.

[@cksidharthan]

Explanation is so simple.. Thanks a lot :)

[@prashantvimal871]

Hey Erika, Thanks for this excellent video.

[@hazkeelrizvi1]

I think there is an Indian guy, with a similar channel on GMAT/GRE/ECAT prep, who just copied the same example and slides. :o I was searching to clarify and solidify my sets concept and I bumped across that video yesteday.

[@mazkaibil9108]

Thank you!

[@devanshshrivastava8005]

Amazing approach Erika. God bless u

[@Funtimesongsantzie]

Thank you for explaining this so well. Can you give some examples of solving venn diagram problems too?

[@niravpatel3575]

Amazing work. Loved it😍

[@arpitkumar1262]

I recently saw a two traits with overlapping traits problem. Request you to share the best way to solve such problems.

[@filippoiguera3224]

Hi Erika! Could you please show how to solve a triple-overlapping-set problem with an example? Thank you for the videos!

[@ashishsinha9035]

Nice

[@meghana2999]

Is this a data sufficiency problem?

[@StringsnNotes]

Why do you ask 😅 . It ofcourse is!!!

[@gaurav.raj.mishra]

You could just let the number of men be x. 36% of x = 288. Solve for x and you get number of men. Do 1400 - x and you get exactly 600.

[@ochiengrodgers7921]

You are using statement one to solve for two where do you get the 36%?

[@kumayltakache3191]

Kiiara? Is that you?

[@chideraesinaulo4095]

She sounds like a computer. I'm not insulting her oh