GMAT Question of the Day - Daily to your Mailbox; hard ones only

 It is currently 13 Nov 2019, 09:57 ### 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

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

Track

every week, we’ll send you an estimated GMAT 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.  # If r and s are variables such that

Author Message
TAGS:

### Hide Tags

MBA Section Director V
Affiliations: GMATClub
Joined: 22 May 2017
Posts: 2649
GPA: 4
WE: Engineering (Computer Software)
If r and s are variables such that  [#permalink]

### Show Tags 00:00

Difficulty:   95% (hard)

Question Stats: 19% (02:42) correct 81% (02:13) wrong based on 31 sessions

### HideShow timer Statistics

If r and s are variables such that $$\frac{1}{r^2} − \frac{1}{s^2} > −9$$ and $$\frac{2}{r^2} − \frac{2}{s^2} < 7$$, which of the segments best represents the overlap zone for values of r and s?

A. $$(-∞, \frac{−1}{4}), (\frac{1}{4}, ∞)$$

B. $$(\frac{−1}{4}, \frac{1}{4})$$

C. $$(-∞, \frac{−1}{5}), (\frac{1}{5}, ∞)$$

D. $$(\frac{−1}{5}, \frac{1}{5})$$

E. $$(-∞, \frac{−1}{5}), (\frac{1}{4}, ∞)$$

_________________
Intern  B
Joined: 15 Apr 2015
Posts: 1
Re: If r and s are variables such that  [#permalink]

### Show Tags

Is this question correct? If so, may you please provide the solution
Manager  G
Status: In last prep stage
Joined: 11 Jun 2017
Posts: 167
GMAT 1: 630 Q44 V33 GMAT 2: 680 Q47 V37 GPA: 3.2
Re: If r and s are variables such that  [#permalink]

### Show Tags

workout wrote:
If r and s are variables such that $$\frac{1}{r^2} − \frac{1}{s^2} > −9$$ and $$\frac{2}{r^2} − \frac{2}{s^2} < 7$$, which of the segments best represents the overlap zone for values of r and s?

A. $$(-∞, \frac{−1}{4}), (\frac{1}{4}, ∞)$$

B. $$(\frac{−1}{4}, \frac{1}{4})$$

C. $$(-∞, \frac{−1}{5}), (\frac{1}{5}, ∞)$$

D. $$(\frac{−1}{5}, \frac{1}{5})$$

E. $$(-∞, \frac{−1}{5}), (\frac{1}{4}, ∞)$$

What is meant by overlap zone here and how do we calculate it.Did not understand this question a bit.What should be done for such questions on test day.
_________________
Thanks,
Tom
Target Score:730+

If the post was useful, please press kudos Re: If r and s are variables such that   [#permalink] 10 Oct 2018, 19:37
Display posts from previous: Sort by

# If r and s are variables such that  