Processing math: 100%

Last visit was: 06 Apr 2025, 13:53 It is currently 06 Apr 2025, 13:53
Decision Tracker
My Rewards
New comers' posts
New posts
Unanswered

Close

GRE Prep Club Daily Prep

Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track
Your Progress

every week, we’ll send you an estimated GRE score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

Go to My Error Log Learn more
Close

Request Expert Reply

Confirm Cancel
PREVIOUS TOPIC
NEXT TOPIC

GRE prep Club test question

Tags :
Find Similar Topics  About  Add a Tag

Show Tags
Hide Tags

avatar
saumya17lc
Intern
Intern
Joined: 12 May 2016
Posts: 12
Own Kudos [?]: 29 [2]
Given Kudos: 0
Send PM
GRE prep Club test question [#permalink] New post   28 Jul 2017, 09:33
1
1
00:00
A
B
C
D
E

Question Stats:

75% (02:20) correct 25% (01:39) wrong based on 8 sessions

Show timer Statistics

If x=5√−37 then which of the following must be true?

A. √(−x)>2

B. x>−2

C. x2<4

D. x3<−8

E. x4>32
ShowHide Answer
Official Answer
D
avatar
pranab223
Retired Moderator
Joined: 20 Apr 2016
Posts: 1307
Own Kudos [?]: 2294 [1]
Given Kudos: 251
WE:Engineering (Energy and Utilities)
Send PM

Top Member of the Month
Re: GRE prep Club test question [#permalink] New post   22 Sep 2017, 12:20
1
saumya17lc wrote:
If x=5√−37
then which of the following must be true?

√−x>2
x>−2
x2<4
x3<−8
x4>32


GREPREP club question- Quant test 6 Question 11 of 20 ID: Q02-99

Just want to add few details in the explanation-

Points to remember- Odd roots have same signs

eg 3√−125 =-5 and 3√125 =5

Now back to question-

we know 5√32=2 so 5√−37≈2.1 ( it should be slightly greater than 25)

Now we can check with each option-
only option D fits the sol. because (−2.1)3 < -8 so x3<−8
User avatar
bumpbot
GRE Prep Club Legend
GRE Prep Club Legend
Joined: 07 Jan 2021
Posts: 5228
Own Kudos [?]: 77 [0]
Given Kudos: 0
Send PM
Re: GRE prep Club test question [#permalink] New post   21 Apr 2023, 21:28
Hello from the GRE Prep Club BumpBot!

Thanks to another GRE Prep Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
Prep Club for GRE Bot
gmatclubot
Re: GRE prep Club test question [#permalink]
21 Apr 2023, 21:28
Moderators:
adewale223
GRE Instructor
108 posts
bronaugust
GRE Forum Moderator
37 posts
BrushMyQuant
Moderator
1131 posts
VibhuAnurag
GRE Instructor
234 posts

Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne

Main navigation

Partners

GRE Resources

www.ets.org/gre | About | Terms and Conditions and Privacy Policy | Prep Club for GRE Rules | Contact