Question: 20 Students - Question II

Comment on 20 Students - Question II

Can you clarify this again please?
greenlight-admin's picture

I can certainly try to clear up any confusion. Can you tell me what part of the solution you are having problems with?

Here although answer is 6/12 and we are not required to simplify it, but still if we simplify it to 1/2 , will that be accepted as correct answer ?
greenlight-admin's picture

Any fraction that's equivalent to 1/2 would be considered correct.

The only condition is that the numerator and denominator must be integers.

So, all of the following would be deemed correct: 3/6, 1/2. 6/12, 100/200, etc

However, if you entered something like 0.1/0.2, this would be incorrect.

Hi Brent,

This got me confused. Why are you not including three female students who are part of the Science major?

Thanks,
Ketan
greenlight-admin's picture

I don't include them because they are not among the original 12 students who are male or sophomore but not both.
The question tells us that the chosen person is among those 12 students, and the three female Science majors are part of those 12 students.

Does that help?

Hi Brent,

Is the double matrix method suitable here?https://greprepclub.com/forum/in-a-research-and-development-department-8429.html

It was easily solved by using two variables.

Thanks,
Ketan
greenlight-admin's picture

Question link: https://greprepclub.com/forum/in-a-research-and-development-department-8...

Tricky question!!!!
Yes, that question is perfect for the Double Matrix method.
Give it a try!

Cheers,
Brent

Hi Brent,

So I used the double matrix method. It was nearly impossible to solve this question using Women( having Ph.D. and not having Ph.D.)matrix and Workers(having Ph.D. and not having Ph.D.) matrix.

Do you think that this question can be solved using the above-mentioned matrix?

Thanks,
Ketan

greenlight-admin's picture

Here's my full solution (using the Double Matrix method): https://greprepclub.com/forum/in-a-research-and-development-department-8...

In all the practice tests I've taken, I've never seen a GRE question that actually has Venn diagrams on it with all these bits of data, so you can rest assure that this won't appear on any GRE test. Now the bigger problem here is that this would be much easier if the test was given in pencil and paper format. I REALLY wish ETS would bring this format back because you can mark up the book, which would be FANTASTIC for this question because you then cross certain points out to make it easier to visualize. Unfortunately, they don't offer this option anymore (for the most part), which is a da*n shame. The only reason why they got rid of it is because computers are more convenient, it eliminates hand-scoring with scantrons, and it's cheaper. In other words, people got LAZIER. I would certainly get a higher GRE score if the format was traditional paper and pencil than computer, hands down. This is another point I have to make grad and law schools aware of in my future applications, in case my score is too low.
greenlight-admin's picture

While many/most GRE data interpretation questions involve familiar graphs and charts, the test-makers aren't immune from also providing non-standard diagrams in their questions. Consider, for example, this official question: https://greprepclub.com/forum/if-the-ceilings-and-walls-of-the-living-ro...

It's also worth noting that on page 319 of the Official Guide to the GRE General test (3rd edition), we're provided with a Venn diagram from which we must make certain conclusions: https://imgur.com/mHMGFvn

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