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OG Verbal Review 2016: Ten years ago the number of taxpayers in Greens [#permalink]
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08 Jul 2015, 10:52
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Ten years ago the number of taxpayers in Greenspace County was slightly greater than the number of registered voters. The number of taxpayers has doubled over the last ten years, while the number of registered voters has increased, but at a lower rate than has the number of taxpayers. Which of the following must be true in Greenspace County if the statements above are true? (A) The number of taxpayers is now smaller than the number of registered voters. (B) Everyone who is a registered voter is also a taxpayer. (C) The proportion of registered voters to taxpayers has increased over the last ten years. (D) The proportion of registered voters to taxpayers has decreased over the last ten years. (E) The proportion of registered voters to taxpayers has remained unchanged over the last ten years.
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Re: OG Verbal Review 2016: Ten years ago the number of taxpayers in Greens [#permalink]
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02 Mar 2016, 21:43
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WillGetIt wrote: Ten years ago the number of taxpayers in Greenspace County was slightly greater than the number o registered voters. The number of taxpayers has doubled over the last ten years, while the number of registered voters has increased, but at a lower rate than has the number of taxpayers. Which of the following must be true in Greenspace County if the statements above are true?
A. The number of taxpayers is now smaller than the number of registered voters.
B. Everyone who is a registered voter is also a taxpayer.
C. The proportion of registered voters to taxpayers has increased over the last ten years.
D. The proportion of registered voters to taxpayers has decreased over the last ten years.
E. The proportion of registered voters to taxpayers has remained unchanged over the last ten years
Advice to attempt this question: This is easy problem as long as you write equation before answering
[i]"Please hit kudos if you like this post" Proportion of registered voters to taxpayers = R/T 10 years ago: T was slightly greater than R. So R/T was slightly less than 1. Now: T has become 2T R has become say 1.5R (R has increased but at a lower rate so it has not become 2R) 1.5R/2T = (3/4)*(R/T) => This is smaller than R/T since R/T is multiplied by a number smaller than 1. So R/T has reduced over the last 10 years. Answer (D)
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Ten years ago the number of taxpayers in Green County was slightly [#permalink]
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Official Guide for GMAT Verbal Review 2016 Practice Question Question No.:16 Page: 125 Difficulty: Ten years ago the number of taxpayers in Green County was slightly greater than the number of registered voters. The number of taxpayers has doubled over the last ten years, while the number of registered voters has increased, but at a lower rate than has the number of taxpayers. Which of the following must be true in Greenspace County if the statements above are true? A) The number of taxpayers is now smaller than the number of registered voters. B) Everyone who is a registered voter is also a taxpayer. C) The proportion of registered voters to taxpayers has increased over at the last ten years. D) The proportion of registered voters to taxpayers has decreased over at the last ten years. E) The proportion of registered voters to taxpayers has remained unchanged over at the last ten years.
Originally posted by nycgirl212 on 31 May 2016, 14:33.
Last edited by nycgirl212 on 04 Jun 2016, 23:46, edited 1 time in total.



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Ten years ago the number of taxpayers in Green County was slightly [#permalink]
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31 May 2016, 19:37
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nycgirl212 wrote: Official Guide for GMAT Verbal Review 2016 Practice Question Question No.:16 Page: 125 Difficulty: Ten years ago the number of taxpayers in Green County was slightly greater than the number of registered voters. The number of taxpayers has doubled over the last ten years, while the number of registered voters has increased, but at a lower rate than has the number of taxpayers. Which of the following must be true in Greenspace County if the statements above are true? A) The number of taxpayers is now smaller than the number of registered voters. B) Everyone who is a registered voter is also a taxpayer. C) The proportion of registered voters to taxpayers has increased over at the last ten years. D) The proportion of registered voters to taxpayers has decreased over at the last ten years. E) The proportion of registered voters to taxpayers has remained unchanged over at the last ten years. The Q is dealing with numbers and proportion.. # of taxpayers were T, slightly more than # of registered voters V. In last 10 years T has become 2T and V has also become xV where x <2. lets see the statements A) The number of taxpayers is now smaller than the number of registered voters. Noway, It will be OppositeB) Everyone who is a registered voter is also a taxpayer. Not necessary
C) The proportion of registered voters to taxpayers has increased over at the last ten years. Proportion earlier was \(\frac{T}{V}.\).. and Now it is \(\frac{2T}{xV}\), where \(x<2\) and \(V<T\), so NO..D) The proportion of registered voters to taxpayers has decreased over at the last ten years. Proportion earlier was \(\frac{T}{V}.\)... and Now it is \(\frac{2T}{xV}\), where \(x<2\) and \(V<T\), so \(\frac{2}{x} *\frac{T}{V}\)...... so it is \(\frac{2}{x}\) times earlier proportion.. But \(\frac{2}{x} > 1\), so \(\frac{2}{x} * \frac{T}{V} > \frac{T}{V}\).. CorrectE) The proportion of registered voters to taxpayers has remained unchanged over at the last ten years we have already shown above that it is > than previous yearD
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Re: Ten years ago the number of taxpayers in Green County was slightly [#permalink]
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01 Jun 2016, 00:34
nycgirl212 wrote: Official Guide for GMAT Verbal Review 2016 Practice Question Question No.:16 Page: 125 Difficulty: Ten years ago the number of taxpayers in Green County was slightly greater than the number of registered voters. The number of taxpayers has doubled over the last ten years, while the number of registered voters has increased, but at a lower rate than has the number of taxpayers. Which of the following must be true in Greenspace County if the statements above are true? A) The number of taxpayers is now smaller than the number of registered voters. B) Everyone who is a registered voter is also a taxpayer. C) The proportion of registered voters to taxpayers has increased over at the last ten years. D) The proportion of registered voters to taxpayers has decreased over at the last ten years. E) The proportion of registered voters to taxpayers has remained unchanged over at the last ten years. A) The number of taxpayers is now smaller than the number of registered voters. (contradicts the argument out !!) B) Everyone who is a registered voter is also a taxpayer. (no where mentioned and what is mentioned is number of taxpayers in Green County was slightly greater than the number of registered votersout !!) C) The proportion of registered voters to taxpayers has increased over at the last ten years. ( 2nd line of the argument says registered voters has increased ,but at a lower rate than has the number of taxpayers so out !! ) D) The proportion of registered voters to taxpayers has decreased over at the last ten years. ( has to be true as registered voters has increased ,but at a lower rate than has the number of taxpayers) E) The proportion of registered voters to taxpayers has remained unchanged over at the last ten years ( ) so D



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Re: Ten years ago the number of taxpayers in Green County was slightly [#permalink]
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14 Dec 2016, 20:16
nycgirl212 wrote: Ten years ago the number of taxpayers in Green County was slightly greater than the number of registered voters. The number of taxpayers has doubled over the last ten years, while the number of registered voters has increased, but at a lower rate than has the number of taxpayers. Which of the following must be true in Greenspace County if the statements above are true?
Type  Inference Boil it down  Ten years ago number of taxpayers(T) slightly > than number of registered voters(V) number of taxpayers(T) = 2x but number of voters(V) increased at a lower rate . T>> V V/T has decreased over last 10 years as rate of increase of T has exceeded V and T was slightly more to begin with A) The number of taxpayers is now smaller than the number of registered voters. Incorrect B) Everyone who is a registered voter is also a taxpayer. Not necessary C) The proportion of registered voters to taxpayers has increased over at the last ten years. Incorrect  D) The proportion of registered voters to taxpayers has decreased over at the last ten years. Correct E) The proportion of registered voters to taxpayers has remained unchanged over at the last ten years . Incorrect Answer D
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Re: Ten years ago the number of taxpayers in Green County was slightly [#permalink]
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18 Dec 2016, 22:42
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Just to make it easier : Assume : T= 10 ; V=5 then T new=20 (as double) and V new = say 9 (v<10 as increase rate is less than T) Now as per D The proportion of registered voters to taxpayers (ten years ago) V/T > (ten years later) V new/T new5/10 > 9/20 5/10 > 9/20 So, proportion has actually decreased over at the last ten years.
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Re: OG Verbal Review 2016: Ten years ago the number of taxpayers in Greens [#permalink]
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10 Jul 2017, 23:26
oh man, working with proportion concept may really devastate your mental visualization. I do go for D after reading the passage, but it takes me 3 min to figure it out how D fits in the real formula.



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Re: OG Verbal Review 2016: Ten years ago the number of taxpayers in Greens [#permalink]
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11 Jul 2017, 10:22
Imo D The proportion decreased as number of taxpayer doubled and registered voters increased slightly . Tax payer =100 Registered voter =90 After the increase Taxpayer =200 Registered voter =150 Initial proportion=90/100 Final proportion =150/200 so the proportion decreased .
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Re: OG Verbal Review 2016: Ten years ago the number of taxpayers in Greens [#permalink]
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11 Jul 2017, 16:39
arvind910619 wrote: Imo D The proportion decreased as number of taxpayer doubled and registered voters increased slightly . Tax payer =100 Registered voter =90 After the increase Taxpayer =200 Registered voter =150 Initial proportion=90/100 Final proportion =150/200 so the proportion decreased . yeah, I follow the same method, but i make a mistake let registered voters 10 and tax payers 11 => then new registered voter is 20 and taxpayers are 22 => big mistake right.



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Re: OG Verbal Review 2016: Ten years ago the number of taxpayers in Greens [#permalink]
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11 Jul 2017, 23:20
Error Analysis:
No. of taxpayers=110 No. of voters=100
Proportion of Voters to Tax payers= (100/110)=0.9
After 10 years No. of Tax Payers=1000 No .of voters =800
Proportion of Voters to Tax Payers= (800/1000)=0.8
Therefore the Proportion has decreased. Option D.



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Re: Ten years ago the number of taxpayers in Green County was slightly [#permalink]
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11 Aug 2017, 21:18
Curious to know how one may be a registered voter if one is not a taxpayer. I suppose you could avoid paying taxes and still be a registered voter (but for how long?). Is this the logic behind this question? I selected B because it does mention number of taxpayers > number of registered voters You must pay taxes, but you are not required to be a registered voter Would like to know what others think CounterSniper wrote: nycgirl212 wrote: Official Guide for GMAT Verbal Review 2016 Practice Question Question No.:16 Page: 125 Difficulty: Ten years ago the number of taxpayers in Green County was slightly greater than the number of registered voters. The number of taxpayers has doubled over the last ten years, while the number of registered voters has increased, but at a lower rate than has the number of taxpayers. Which of the following must be true in Greenspace County if the statements above are true? A) The number of taxpayers is now smaller than the number of registered voters. B) Everyone who is a registered voter is also a taxpayer. C) The proportion of registered voters to taxpayers has increased over at the last ten years. D) The proportion of registered voters to taxpayers has decreased over at the last ten years. E) The proportion of registered voters to taxpayers has remained unchanged over at the last ten years. A) The number of taxpayers is now smaller than the number of registered voters. (contradicts the argument out !!) B) Everyone who is a registered voter is also a taxpayer. (no where mentioned and what is mentioned is number of taxpayers in Green County was slightly greater than the number of registered votersout !!) C) The proportion of registered voters to taxpayers has increased over at the last ten years. ( 2nd line of the argument says registered voters has increased ,but at a lower rate than has the number of taxpayers so out !! ) D) The proportion of registered voters to taxpayers has decreased over at the last ten years. ( has to be true as registered voters has increased ,but at a lower rate than has the number of taxpayers) E) The proportion of registered voters to taxpayers has remained unchanged over at the last ten years ( ) so D



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Re: Ten years ago the number of taxpayers in Green County was slightly [#permalink]
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25 Sep 2017, 01:57
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t= tax payer =10 r = voters = 9 this is let say 10 yrs ago T=20 R=15 Now => T/R>t/r Dis ans
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Re: Ten years ago the number of taxpayers in Green County was slightly [#permalink]
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03 Feb 2018, 21:15
chetan2uQuote: D) The proportion of registered voters to taxpayers has decreased over at the last ten years. Proportion earlier was \(\frac{T}{V}.\)... and Now it is \(\frac{2T}{xV}\), where \(x<2\) and \(Vso it is \(\frac{2}{x}\) times earlier proportion.. But \(\frac{2}{x} > 1\), so \(\frac{2}{x} * \frac{T}{V} > \frac{T}{V}\).. Correct
On few rare occasions, my approach matched with experts. However I took x as 1.5 since I knew that the no of registered voters has increase but not as much as that of tax payers. Will this work good too?
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