Last visit was: 15 Oct 2026, 15:18 It is currently 15 Oct 2026, 15:18
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

a is a positive integer

Tags :
Find Similar Topics  About  Add a Tag

Show Tags
Hide Tags

User avatar
D
Carcass
Verbal Expert
Joined: 18 Apr 2015
Posts: 36315
Own Kudos [?]: 43636 [0]
Given Kudos: 27309
Send PM
a is a positive integer [#permalink] Post   18 May 2022, 08:04
Expert Reply
00:00

Question Stats:

62% (00:16) correct 37% (00:24) wrong based on 8 sessions

Hide Show timer Statistics

a is a positive integer

Quantity A
Quantity B
\( \frac{1}{a^7}\)
\(\frac{1}{a^{10}}\)



A. Quantity A is greater
B. Quantity B is greater
C. The two quantities are equal
D. The relationship cannot be determined from the information given

ShowHide Answer
Official Answer
D
avatar
Vish44
Intern
Intern
Joined: 27 Dec 2021
Posts: 1
Own Kudos [?]: 1 [1]
Given Kudos: 6
Send PM
Re: a is a positive integer [#permalink] Post   18 May 2022, 08:24
1
Shouldn't the answer be D? The two quantities will be equal when a = 1.
avatar
B
PatrickBotchwey
Intern
Intern
Joined: 05 Dec 2021
Posts: 12
Own Kudos [?]: 5 [0]
Given Kudos: 17
Send PM
a is a positive integer [#permalink] Post   Updated on: 18 May 2022, 11:22
.

Originally posted by PatrickBotchwey on 18 May 2022, 08:27.
Last edited by PatrickBotchwey on 18 May 2022, 11:22, edited 1 time in total.
User avatar
P
GreenlightTestPrep
Retired Moderator
Joined: 10 Apr 2015
Posts: 6218
Own Kudos [?]: 12850 [1]
Given Kudos: 136
Send PM

Top Member of the Month
Re: a is a positive integer [#permalink] Post   18 May 2022, 08:45
1
Carcass wrote:
a is a positive integer

Quantity A
Quantity B
\( \frac{1}{a^7}\)
\(\frac{1}{a^{10}}\)




STRATEGY: When I encounter a Quantitative Comparison question featuring algebraic expressions, I immediately look for any obvious values that would make the two quantities equal (I call the strategy "Looking for Equality")

For this question, I can see that, if \(a = 1\), then Quantity A = Quantity B
At this point, I know the correct answer is either C or D.

Let's test another a-value
If \(a = 2\), then Quantity A ≠ Quantity B

Answer: D

RELATED VIDEO
User avatar
P
GreenlightTestPrep
Retired Moderator
Joined: 10 Apr 2015
Posts: 6218
Own Kudos [?]: 12850 [1]
Given Kudos: 136
Send PM

Top Member of the Month
Re: a is a positive integer [#permalink] Post   18 May 2022, 08:46
1
Vish44 wrote:
Shouldn't the answer be D? The two quantities will be equal when a = 1.

You're absolutely right.
I have edited the official answer
Prep Club for GRE Bot
gmatclubot
Re: a is a positive integer [#permalink]
18 May 2022, 08:46
Moderators:
adewale223
GRE Instructor
167 posts
bronaugust
GRE Forum Moderator
37 posts
VibhuAnurag
GRE Instructor
275 posts
Nsp10
Moderator
45 posts
tyrant100
GRE Forum Moderator
144 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 | Advertise