Princeton GRE wrong answers

[George2248]

Hello I just did my last Princeton Practice tes and as many of you know there are some errors, even in the answer they gave.

I have 2 math problems where I am pretty sure their answer is not correct but I need to be sure that is not me who is making a wrong assumption. I wanted to chek this 2 questions with you guys but I dont know how to post images in the forum so you can see them...

If anyone can help...

Also this way we could post, the hardest math questions and maybe help each other on solving them

Thanks for your time

[Rachel B]

It would be helpful if you listed the questions.