-
keizer Soze
- Junior | Next Rank: 30 Posts
- Posts: 20
- Joined: Mon Apr 27, 2009 6:15 pm
- Thanked: 1 times
- GMAT Score:650
BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course
Redeem
Target Test Prep GMAT OnDemand
Scott Woodbury-Stewart’s private virtual classroom — 400 hours of master-class video lessons for the GMAT Focus Edition.
- 715+ score guarantee — highest in the industry (99th percentile)
- 52 chapters · 1,500+ lessons · 4,000+ practice questions
- 400 hours of video · 1,500+ instructor-led HD smartboard lessons
- 300,000+ students accepted to Harvard, Stanford, Wharton, Booth & Sloan & more
- 24/7 live support + weekly Zoom office hours with GMAT instructors
- TTP AI Assist — 24/7 AI-powered virtual tutor for instant help
- 1,200+ flashcards + AI-powered study assistant & daily calendar
- OnDemand, LiveTeach & GMAT Bootcamp formats available
- Also: GRE, SAT Math & Executive Assessment courses
- MBA Admissions Consulting now available
- 🏆 2025 EdTech Breakthrough Award: Test Prep Solution Provider of the Year
- 200,000+ students served
- 5-day free trial — $0 to start, no auto-billing, cancel anytime
★★★★★
5.0
(559 reviews)
130-pt guarantee
$0 to start
then $127/mo
Series...
Source: Beat The GMAT — Problem Solving |
Got it.. my bad!! A it is..
Last edited by dumb.doofus on Tue Apr 28, 2009 11:04 pm, edited 1 time in total.
One love, one blood, one life. You got to do what you should.
https://dreambigdreamhigh.blocked/
https://gmattoughies.blocked/
https://dreambigdreamhigh.blocked/
https://gmattoughies.blocked/
I just solved it this way:
1° R2-R1 = -1 | So, R1=R2+1 so, R1>R2
2° R3-R2 = 1/2 | So, R3=R2 + 1/2 so, R3>R2
3° R1=R2 + 1 and R3=R2 + 1/2 R1 is 1/2 more than R3 | So R1>R3
So I guess that it´s A the answer...
1° R2-R1 = -1 | So, R1=R2+1 so, R1>R2
2° R3-R2 = 1/2 | So, R3=R2 + 1/2 so, R3>R2
3° R1=R2 + 1 and R3=R2 + 1/2 R1 is 1/2 more than R3 | So R1>R3
So I guess that it´s A the answer...
I think I am missing something here. Do you know what is the source of this q and if there is any element missing from the q?
They way I see it is that all boils down to the value of r1
On simplifying,
r2 = (1/2) + r1
r3 = (1/6) + r1
If r1 is -ve say -(1/2)
r2 = 0 and r3 = -(1/3)
So you have r3<r1<r2
But if r1 is +ve say 1/2
r2 = 1 and r3 = 2/3
Now, r1<r3<r2
I can only conclude that r2 would be the greatest and can eliminate choices A, B and E.
They way I see it is that all boils down to the value of r1
On simplifying,
r2 = (1/2) + r1
r3 = (1/6) + r1
If r1 is -ve say -(1/2)
r2 = 0 and r3 = -(1/3)
So you have r3<r1<r2
But if r1 is +ve say 1/2
r2 = 1 and r3 = 2/3
Now, r1<r3<r2
I can only conclude that r2 would be the greatest and can eliminate choices A, B and E.
Thanx dendude,
I think that somenthing is wrong with your numbers:
r2 - r1 = -1^n/n
r2= -1^1/1 + r1
r2= -1 + r1 and not r2= (1/2) + r1
I think that somenthing is wrong with your numbers:
r2 - r1 = -1^n/n
r2= -1^1/1 + r1
r2= -1 + r1 and not r2= (1/2) + r1
You're right thanks for pointing out my blunderkeizer Soze wrote:Thanx dendude,
I think that somenthing is wrong with your numbers:
r2 - r1 = -1^n/n
r2= -1^1/1 + r1
r2= -1 + r1 and not r2= (1/2) + r1
I assumed r2 = (-1)^2 etc....
when in fact it was r(n+1) = (-1)^n and not to the power n+1
With that in mind,
r2 = -1 + r1
r3 = (-1/2) + r1
If r1 is -ve, say -1/2
r2 = -3/2 and r3 = -1
So, r2<r3<r1
If r1 is +ve, say 1/2
r2 = -1/2 and r3 = 0
Also, r2<r3<r1
Clearly, Choice A
















