Live GMAT classes with Target Test Prep start Nov 21 and Nov 22. First class free.

See classes
Target Test Prep · GMAT

Choose how you want to prepare

Learn live with an expert or move at your own pace. Every option includes the complete TTP study system.

Newsweek Readers’ Choice Awards 2026 winner: Target Test Prep, #1 Test Prep

Target Test Prep was voted #1 Best Test Prep in the 2026 Newsweek Readers’ Choice™ Awards.

★★★★★5.0563 reviews
GMATLiveTeachStarts Nov 22
Josh Braslow, Target Test Prep GMAT expert
LIVE ONLINE CLASSES

Get Ready for GMAT Test Day Faster with Live Online Classes

with Josh Braslow, 20+ years in test prep

Nov 22 · Josh Braslow
Sun · 9:30 AM to 12:30 PM ET
Included
40 hours of live online classes + 6 months of TTP OnDemand
  • Attend the first class for free
  • Every class is recorded, so you never fall behind
View classes & enroll
Limited seats availableTarget Test Prep
EALiveTeachOnDemandStart anytime
EXECUTIVE ASSESSMENT

Target Test Prep EA OnDemand

Self-paced EA prep. Study on your schedule.

EXECUTIVE ASSESSMENT

with

165+ EA score guarantee
$05-day trial no automatic billing
Schedule
Included
40 hours of live online classes plus six months of access to the complete TTP EA OnDemand course.
  • 165+ EA Score Guarantee
  • 4,100+ Quant, Verbal, and Integrated Reasoning practice questions
  • 400+ hours of in-depth video lessons
  • 3,000+ step-by-step video solutions
View EA class & enroll Start free 5-day trial
Limited cohort · enrollment openTrial includes full course accessTarget Test Prep
GMATOnDemandStart anytime
SELF-PACED MASTERCLASS

Target Test Prep GMAT OnDemand

Complete access from day one. Study on your schedule.

715+ score guarantee
$0to start then $127/mo
  • Personalized study plan and analytics
  • Thousands of lessons and practice questions

Inequality OG 11 Diagnostic DS 33 Confused!

Expert replies
by sabal » Tue Nov 18, 2008 10:34 pm
I have my GMAT tomorrow ie 20th of Nov 08
This Question is from OG11 Diagnostic 33
Got a lil confused with this question

Q. Is 5^(x+2)/25<1?
1. 5^x <1
2. x<0

The OA is D
I solved the inequality in the question like this
=5^(x+2)<1*25
=5^(x+2)<25
=5^(x+2)<5^2 (cancelling out 5 from both sides)
=(x+2)<2
Therefore, x<0 (same as statement 2)

Another Way,
=5^(x+2)/5^2<1
=5^x*5^2/5^2<1
=5^x<1 (Substituting, 5^0=1)(same as Statement1!)
=5^x<5^0 (cancelling out 5 from both sides)
Therefore, x<0 (same as statement 2)

What is wrong in the way i solved it?
Is the way I solved this inequality wrong??
(The cancelling ou the base bit??)
have I got the DS logic wrong the last minute?
So if someone can just explain me this DS inequality, would be very happy!!!
Last edited by sabal on Tue Nov 18, 2008 11:35 pm, edited 1 time in total.
Join the discussion
Source: — Data Sufficiency |

by vishubn » Tue Nov 18, 2008 11:11 pm
=5^(x+2)/5^2<1
=5^x*5^2/5^2<1
=5^x<1 (Substituting, 5^0=1)
=5^x<5^0 (cancelling out 5 from both sides)
Therefore, x<1
why did u get 5^x<5^0 as x<1

it should be x<0 right !! i am sure this mgith due to the stress :)

ANd all the best !!!

Vishu
KILL !! DIE !! or BEAT my FEAR !!! de@D END!!
Join the discussion

by sabal » Wed Nov 19, 2008 12:24 am
Corrected that error
Is the way I simplified that Inequality correct?
Just wanted to know the basis for the correct answer.
cuz the equation in the question itself gives us the Statements 1 and 2

Just need some clarification.
Join the discussion

by vishubn » Wed Nov 19, 2008 1:22 am
Just wanted to know the basis for the correct answer.
cuz the equation in the question itself gives us the Statements 1 and 2
ya i think i would done wither of the approach !! I dont see anythign wrong ??

Do u want to solve and rill down to the OA???

Vishu
p.s. i presume u know how to solve and asking for option to solve
KILL !! DIE !! or BEAT my FEAR !!! de@D END!!
Join the discussion

by sabal » Wed Nov 19, 2008 1:40 am
I understood what was wrong!
On reading the question carefully.... "IS"....??
We assumed that the question inequality is TRUE. this is a wrong approach!!!
This is the Yes/ No type Question.
The question is asking if it is true?
The question does not say that the 5^(x+2)/25 <1 is True.

So A and B both satisfy the condition thus making the inequality true!!
Therefore the answer is D.


Thanks a lot anyway!!!
Join the discussion

by jimmiejaz » Wed Nov 19, 2008 5:12 am
First of all best of luck for your exam.

I would like to point one thing that might save you time.
As i look at your explanation, when you reach at 5^x<1 and that is what is given in the first statement please STOP at that point and move to the next statement. If you solve a D>S question and get to a point which is given in one of the statements, then that statement is SUFFICIENT.
It will save you time.
Everything else is fine!!! :)
Good luck :D
What if i have not yet beat the beast, I know i will beat it!!!!!!!!
Join the discussion

sabal wrote:I have my GMAT tomorrow ie 20th of Nov 08
This Question is from OG11 Diagnostic 33
Got a lil confused with this question

Q. Is 5^(x+2)/25<1?
1. 5^x <1
2. x<0

The OA is D
I solved the inequality in the question like this
=5^(x+2)<1*25
=5^(x+2)<25
=5^(x+2)<5^2 (cancelling out 5 from both sides)
=(x+2)<2
Therefore, x<0 (same as statement 2)

Another Way,
=5^(x+2)/5^2<1
=5^x*5^2/5^2<1
=5^x<1 (Substituting, 5^0=1)(same as Statement1!)
=5^x<5^0 (cancelling out 5 from both sides)
Therefore, x<0 (same as statement 2)

What is wrong in the way i solved it?
Is the way I solved this inequality wrong??
(The cancelling ou the base bit??)
have I got the DS logic wrong the last minute?
So if someone can just explain me this DS inequality, would be very happy!!!
All the best Sabal.
Crack this 800 barrier !!!!!
-V
Join the discussion

by cramya » Wed Nov 19, 2008 8:14 pm
First of all wish u the very best of luck! We all hope u do well on the GMAT.


The question stem itself can be simplified

5^(x+2) / 25 = 5^ x * 5 ^2 / 25 = 5^x * 25/25

So the question boils down to

Is 5^x<1

Stmt I

Exactly what we want is given

SUFF

Stmt II

x<0

We know any integer raised to a neagtive exponent will always be less than 1

SUFF

D)
Join the discussion