Events & Promotions
|
|
GMAT 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
Track
Your Progress
Practice
Pays
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
Apr 2808:00 AM PDT
-11:00 AM PDT
Whether you are just beginning your MBA journey or fine-tuning your path to a 700+ score, GMAT Day is designed to give you a competitive edge.
Apr 2711:00 AM EDT
-12:00 PM EDT
Prefer video-based learning? The Target Test Prep OnDemand course is a one-of-a-kind video masterclass featuring 400 hours of lecture-style teaching by Scott Woodbury-Stewart, founder of Target Test Prep and one of the most accomplished GMAT instructors
07 Feb 2019, 01:36
Kudos
Bookmarks
E
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
45%
(medium)
Question Stats:
61% (01:31) correct
39%
(01:28)
wrong
based on 677
sessions
History
Date
Time
Result
Not Attempted Yet
If -1 < x < 0, which of the following is correct?
A. \(x^{-3} < x^{-2} < x^{-1}\)
B. \(x^{-1} < x^{-2} < x^{-3}\)
C. \(x^{-1} < x^{-3} < x^{-2}\)
D. \(x^{-2} < x^{-3} < x^{-1}\)
E. \(x^{-3} < x^{-1} < x^{-2}\)
A. \(x^{-3} < x^{-2} < x^{-1}\)
B. \(x^{-1} < x^{-2} < x^{-3}\)
C. \(x^{-1} < x^{-3} < x^{-2}\)
D. \(x^{-2} < x^{-3} < x^{-1}\)
E. \(x^{-3} < x^{-1} < x^{-2}\)
07 Feb 2019, 02:11
Kudos
Bookmarks
Bunuel
\(x^{-2}\) is always positive so greatest among \(x^{-3},x^{-1}\) So A,B,D eliminated
by putting values we can tell \(x^{-3} < x^{-1}\)
So E
07 Feb 2019, 02:32
Kudos
Bookmarks
If -1 < x < 0, which of the following is correct?
Inference
X = (-0.1,-0.01...)
X = (-1/10, -1/100...)
From the above it clear that X is a proper fraction
Now for all proper fractions
X > X^2 > X^3...
I.e. X^small power > X^large power
We are given X^-1 which is the highest power and X^-3 which is the smallest power since -3<-1
Thus we can say that
X^-3 > X^-2 > X^-1 (B)
Posted from my mobile device
Inference
X = (-0.1,-0.01...)
X = (-1/10, -1/100...)
From the above it clear that X is a proper fraction
Now for all proper fractions
X > X^2 > X^3...
I.e. X^small power > X^large power
We are given X^-1 which is the highest power and X^-3 which is the smallest power since -3<-1
Thus we can say that
X^-3 > X^-2 > X^-1 (B)
Posted from my mobile device
