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# M01-05

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Math Expert
Joined: 02 Sep 2009
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Math Expert
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Posts: 94778
Own Kudos [?]: 646406 [0]
Given Kudos: 86853
Current Student
Joined: 02 Jul 2017
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Concentration: Entrepreneurship, Technology
GMAT 1: 730 Q50 V38
Intern
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I think this is a high-quality question and I agree with explanation.
GMAT Tutor
Joined: 24 Jun 2008
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Q51  V47
1
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I wonder if anyone can explain something to me that I've been vaguely curious about for a while. Whenever I visit these discussion threads about gmatclub test questions, I always see several posts that read, almost verbatim, sometimes years apart, "I think this is a high-quality question and I agree with the explanation" or "I think this is a poor-quality question and I disagree with the explanation." Why are there so many posts like this? Did gmatclub request this kind of feedback at some point?

This question is very similar to many official questions -- comparing powers of unknowns is a standard GMAT inequality trope -- and it's certainly a high-quality question, and one that will reward study.
Math Expert
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IanStewart wrote:
I wonder if anyone can explain something to me that I've been vaguely curious about for a while. Whenever I visit these discussion threads about gmatclub test questions, I always see several posts that read, almost verbatim, sometimes years apart, "I think this is a high-quality question and I agree with the explanation" or "I think this is a poor-quality question and I disagree with the explanation." Why are there so many posts like this? Did gmatclub request this kind of feedback at some point?

This question is very similar to many official questions -- comparing powers of unknowns is a standard GMAT inequality trope -- and it's certainly a high-quality question, and one that will reward study.

IanStewart

Hi Ian,

Yes, there is an option for each question in a test to mark it as high-quality or poor-quality and mark "I agree with the explanation" or "I don't agree with the explanation".
GMAT Tutor
Joined: 24 Jun 2008
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Q51  V47
Bunuel wrote:
Yes, there is an option for each question in a test to mark it as high-quality or poor-quality and mark "I agree with the explanation" or "I don't agree with the explanation".

That explains it! Thanks Bunuel.
GMAT Tutor
Joined: 24 Jun 2008
Posts: 4127
Own Kudos [?]: 9493 [0]
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Q51  V47
Bunuel wrote:
If $$x \gt 1$$ and $$y \gt 1$$, is $$x \gt y$$?

(1) $$\sqrt{x} \gt y$$

(2) $$\sqrt{y} \lt x$$

If x > 1, then x > √x. So from Statement 1, x > √x > y, and x > y, so Statement 1 is sufficient.

For Statement 2, we know x > √y, and since y > 1, we know y > √y. That doesn't help us compare x and y. If y = 4, then since x > √y, we know x > 2, but x can be 3 and can thus be less than y, or x can be 1,000,000 and can thus be greater than y. So the answer is A.
Math Expert
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I have edited the question and the solution by adding more details to enhance its clarity. I hope it is now easier to understand.
Intern
Joined: 18 Mar 2022
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Location: India
GMAT 1: 720 Q51 V35
WE:Analyst (Computer Software)
I think this is a high-quality question and I agree with explanation.
DI Forum Moderator
Joined: 05 May 2019
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645 Q82 V81 DI82
GMAT 1: 430 Q31 V19
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GPA: 3.26
WE:Engineering (Manufacturing)
I think this is a high-quality question and I agree with explanation.
Intern
Joined: 24 Aug 2023
Posts: 10
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Location: United States (NY)
Bunuel wrote:
If $$x \gt 1$$ and $$y \gt 1$$, is $$x \gt y$$?

(1) $$\sqrt{x} \gt y$$

(2) $$\sqrt{y} \lt x$$

Let's say x=4 and y=3, so is the first condition still fine and sufficient?
Math Expert
Joined: 02 Sep 2009
Posts: 94778
Own Kudos [?]: 646406 [0]
Given Kudos: 86853
ArtemNYC wrote:
Bunuel wrote:
If $$x \gt 1$$ and $$y \gt 1$$, is $$x \gt y$$?

(1) $$\sqrt{x} \gt y$$

(2) $$\sqrt{y} \lt x$$

Let's say x=4 and y=3, so is the first condition still fine and sufficient?

x = 4 and y = 3 does not satisfy $$\sqrt{x} \gt y$$.