Source: Revised GRE PDF 1st Ed. Section 5: Math; #5 (p. 72)

6

6 < x < 7 y=8

6 < x < 7 y=8 Quantity A : x/y Quantity B : 0.85 Quantity A is greater., Quantity B is greater., The two quantities are equal., The relationship cannot be determined from the information given.

3 Explanations

2

Gabrielle Lynch

What I did instead, I started at 6/8 = 3/4. Then I just added decimals in between for example, I used 6.1/8 = 0.7625. Next I said why not try 6.99/8 = 0.87375 which I knew was bigger than quantity B. So I went with the answer D which was the correct answer. Is this a method that I could use during the GRE?

Aug 20, 2017 • Comment

Sam Kinsman, Magoosh Tutor

Yes, you could do that. The key is to see that Quantity A is between 6/8 and 7/8, which means it could be smaller or larger than 0.85.

Aug 26, 2017 • Reply

4

Swati Bansal

I followed a different approach. I multiplied both sides by 8.
A becomes x and B becomes 8 x 0.85 = 6.8
Since x can be anywhere between 6 and 7, answer is D.

Aug 31, 2016 • Comment

Sam Kinsman, Magoosh Tutor

Yes, that works Swati. Good job! :D

Sep 1, 2016 • Reply

2

Gravatar Chris Lele, Magoosh Tutor

Sep 26, 2012 • Comment

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