M01-05

I think this is a high-quality question and I agree with explanation.

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".

That explains it! Thanks Bunuel.

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.

I have edited the question and the solution by adding more details to enhance its clarity. I hope it is now easier to understand.

I think this is a high-quality question and I agree with explanation.

I think this is a high-quality question and I agree with explanation.

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 \(\sqrt{x} \gt y\).