A milepost on the towpath read 21 on the side facing the : GMAT Critical Reasoning (CR)
Check GMAT Club Decision Tracker for the Latest School Decision Releases http://gmatclub.com/AppTrack

 It is currently 22 Jan 2017, 11:45

### 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

# Events & Promotions

###### Events & Promotions in June
Open Detailed Calendar

# A milepost on the towpath read 21 on the side facing the

Author Message
TAGS:

### Hide Tags

SVP
Joined: 04 May 2006
Posts: 1926
Schools: CBS, Kellogg
Followers: 23

Kudos [?]: 1013 [0], given: 1

A milepost on the towpath read 21 on the side facing the [#permalink]

### Show Tags

21 Jan 2008, 21:25
3
This post was
BOOKMARKED
00:00

Difficulty:

5% (low)

Question Stats:

91% (02:14) correct 9% (01:38) wrong based on 597 sessions

### HideShow timer Statistics

Official Guide for GMAT Verbal Review, 2nd Edition

Practice Question
Question No.: 61
Page: 140
Difficulty:

A milepost on the towpath read “21” on the side facing the hiker as she approached it and “23” on its back. She reasoned that the next milepost forward on the path would indicate that she was halfway between one end of the path and the other. However, the milepost one mile further on read “20” facing her and “24” behind.

Which of the following, if true, would explain the discrepancy described above?

(A) The numbers on the next milepost had been reversed.
(B) The numbers on the mileposts indicate kilometers, not miles.
(C) The facing numbers indicate miles to the end of the path, not miles from the beginning.
(D) A milepost was missing between the two the hiker encountered.
(E) The mileposts had originally been put in place for the use of mountain bikers, not for hikers.
[Reveal] Spoiler: OA

_________________
If you have any questions
New!
Senior Manager
Joined: 06 Jul 2006
Posts: 295
Location: SFO Bay Area
Schools: Berkeley Haas
Followers: 2

Kudos [?]: 61 [0], given: 0

### Show Tags

22 Jan 2008, 13:00

As the number facing is decreasing, it means the distance remaining is decreasing and vice versa the other num is increasing that she has covered one more unit of distance.
_________________

-------------------------------------------------------------
When you come to the end of your rope, tie a knot and hang on.

Director
Joined: 01 Jan 2008
Posts: 629
Followers: 5

Kudos [?]: 175 [0], given: 1

### Show Tags

22 Jan 2008, 13:36
I second C. That seems to be the standard way of marking mileposts on highways.
Intern
Joined: 09 Jan 2008
Posts: 18
Followers: 1

Kudos [?]: 3 [0], given: 0

### Show Tags

22 Jan 2008, 14:12
sondenso wrote:
A milepost on the towpath read “21” on the side facing the hiker as she approached it and “23” on its back. She reasoned that the next milepost forward on the path would indicate that she was halfway between one end of the path and the other. However, the milepost one mile further on read “20” facing her and “24” behind.

Which of the following, if true, would explain the discrepancy described above?
(A) The numbers on the next milepost had been reversed. If numbers have been reversed, it's not only on 'next milepost' but on both of them -> Eliminate it
(B) The numbers on the mileposts indicate kilometers, not miles. ... don't need to explain why I eliminate it!
(C) The facing numbers indicate miles to the end of the path, not miles from the beginning. logical answer; the distance to the end the path is decreasing each mile -> Hold it
(D) A milepost was missing between the two the hiker encountered. "the milepost one mile further"... so every milestone is at the right place, no one is missing. -> eliminate it
(E) The mileposts had originally been put in place for the use of mountain bikers, not for hikers. this one is fun but... eliminate it!

-> C
Director
Joined: 30 Jun 2007
Posts: 793
Followers: 1

Kudos [?]: 157 [0], given: 0

### Show Tags

22 Jan 2008, 21:08
Another C
Senior Manager
Joined: 06 Jul 2006
Posts: 295
Location: SFO Bay Area
Schools: Berkeley Haas
Followers: 2

Kudos [?]: 61 [0], given: 0

### Show Tags

22 Jan 2008, 21:25
How about the following CR question ??

11-t58442

SKS
_________________

-------------------------------------------------------------
When you come to the end of your rope, tie a knot and hang on.

Director
Joined: 14 Aug 2007
Posts: 733
Followers: 10

Kudos [?]: 182 [0], given: 0

### Show Tags

22 Jan 2008, 21:57
sondenso wrote:
A milepost on the towpath read “21” on the side facing the hiker as she approached it and “23” on its back. She reasoned that the next milepost forward on the path would indicate that she was halfway between one end of the path and the other. However, the milepost one mile further on read “20” facing her and “24” behind.

Which of the following, if true, would explain the discrepancy described above?

(A) The numbers on the next milepost had been reversed.[wrong eliminate]
(B) The numbers on the mileposts indicate kilometers, not miles. [ wrong eliminate]
(C) The facing numbers indicate miles to the end of the path, not miles from the beginning. [ logical]
(D) A milepost was missing between the two the hiker encountered. [ don't feel in the logical gap -eliminate]
(E) The mileposts had originally been put in place for the use of mountain bikers, not for hikers.[ irrelevant -eliminate]

so C
SVP
Joined: 04 May 2006
Posts: 1926
Schools: CBS, Kellogg
Followers: 23

Kudos [?]: 1013 [0], given: 1

### Show Tags

23 Jan 2008, 00:28
Thank all of you guys, paradox is a nightmare for me, do you have any tips for this?
_________________
Intern
Joined: 05 Sep 2009
Posts: 9
Followers: 0

Kudos [?]: 4 [0], given: 2

A milepost on the towpath read 21 on the side facing the [#permalink]

### Show Tags

12 Sep 2009, 21:21
A milepost on the towpath read＂21＂on the side facing the hiker as she approached it and＂23＂on its back．She reasoned that the next milepost forward on the path would indicate that she was halfway between one end of the path and the other. However, the milepost one mile further on read＂20＂facing her and＂24＂behind．

Which of the following，if true，would explain the discrepancy described above?

(A) The numbers on the next milepost had been reversed．
(B) The numbers on the mileposts indicate kilometers，not miles．
(C) The facing numbers indicate miles to the end of the path．not miles from the beginning．
(D) A milepost was missing between the two the hiker encountered．
(E) The mileposts had originally been put in place for the use of mountain bikers，not for hikers．
_________________

- Its all about correctness first and then the timing.

Senior Manager
Joined: 20 Mar 2008
Posts: 454
Followers: 1

Kudos [?]: 119 [2] , given: 5

### Show Tags

12 Sep 2009, 21:40
2
KUDOS
pual wrote:
A milepost on the towpath read＂21＂on the side facing the hiker as she approached it and＂23＂on its back．She reasoned that the next milepost forward on the path would indicate that she was halfway between one end of the path and the other. However, the milepost one mile further on read＂20＂facing her and＂24＂behind．

Which of the following，if true，would explain the discrepancy described above?

(A) The numbers on the next milepost had been reversed．
(B) The numbers on the mileposts indicate kilometers，not miles．
(C) The facing numbers indicate miles to the end of the path．not miles from the beginning．
(D) A milepost was missing between the two the hiker encountered．
(E) The mileposts had originally been put in place for the use of mountain bikers，not for hikers．

I'm not sure I understand this problem, specially the hiker's reasoning part. So I will go by POE.

A: Maybe. Let's keep it for now.
B: Irrelevant, unit won't make a difference in this case.
C: This sounds reasonable, because from the problem description it vaguely seems that the hiker was expecting the numbers to be in a certain order, but in fact it's reversed. Strong candidate, let's keep this for now.
D: Maybe, maybe not. But it doesn't change the dist, or direction.
E: Irrelevant.

Between, A & C, C looks the best. So C for me.
Intern
Joined: 05 Sep 2009
Posts: 9
Followers: 0

Kudos [?]: 4 [0], given: 2

### Show Tags

13 Sep 2009, 01:10
good explanation buddy...thanks...!!!
_________________

- Its all about correctness first and then the timing.

Manager
Joined: 22 Mar 2010
Posts: 61
Followers: 1

Kudos [?]: 23 [0], given: 1

A milepost on the towpath read 21 on the side facing the [#permalink]

### Show Tags

24 Jul 2010, 10:28
A milepost on the towpath read “21” on the side facing the hiker as she approached it and “23” on its back. She reasoned that the next milepost forward on the path would indicate that she was halfway between one end of the path and the other. However, the milepost one mile further on read “20” facing her and “24” behind.

Which of the following, if true, would explain the discrepancy described above?
(A) The numbers on the next milepost had been reversed.
(B) The numbers on the mileposts indicate kilometers, not miles.
(C) The facing numbers indicate miles to the end of the path, not miles from the beginning.
(D) A milepost was missing between the two the hiker encountered.
(E) The mileposts had originally been put in place for the use of mountain bikers, not for hikers.
Moderator
Status: battlecruiser, operational...
Joined: 25 Apr 2010
Posts: 983
Schools: Carey '16
GMAT 1: Q V
Followers: 12

Kudos [?]: 159 [0], given: 71

### Show Tags

24 Jul 2010, 12:27
C. Easy =)
_________________
Manager
Joined: 11 May 2010
Posts: 224
Followers: 4

Kudos [?]: 116 [0], given: 11

### Show Tags

26 Jul 2010, 00:29
I pick C.

It is exactly as C said, nothing more to add.
Manager
Joined: 09 Jul 2010
Posts: 150
Followers: 1

Kudos [?]: 26 [0], given: 3

### Show Tags

26 Jul 2010, 21:03
C
_________________

consider cudos if you like my post

Director
Joined: 21 Dec 2010
Posts: 649
Followers: 17

Kudos [?]: 219 [0], given: 51

### Show Tags

29 Apr 2011, 09:20
C clearly explains the so called paradox
_________________

What is of supreme importance in war is to attack the enemy's strategy.

Manager
Joined: 28 Sep 2011
Posts: 206
GMAT 1: Q V
Followers: 1

Kudos [?]: 65 [0], given: 5

Re: A milepost on the towpath read 21 on the side facing the [#permalink]

### Show Tags

24 Mar 2012, 14:06
I have chosen the answer C for this question:

You can almost think of this question like a basic math problem. You know that the total distance of the hike is 44 miles. If this individual hikes and sees 21 on the front of the milepost and 23 on the back, you probably won't be sure what those numbers mean. However, after you hike some more and see 20 on the front and 24 on the back, it should tell you that you have just walked 1 mile and that the number on the front tells you remaining distance, not distance traveled.

A. This answer choice would be incorrect because the next sign should only be a 1 mile difference, yet we would have 21 and 24 as the milepost readings.

B. The unit of measurement is not important

C. This is the correct answer and it definitely resolves the paradox.

D. This doesn't make much sense because what milepost would be in between 21 and 20?

E. Who the milepost was put in for is irrelevant.
Director
Joined: 29 Nov 2012
Posts: 898
Followers: 14

Kudos [?]: 1047 [0], given: 543

Re: A milepost on the towpath read 21 on the side facing the [#permalink]

### Show Tags

27 May 2013, 00:51
Can someone please provide detailed explanation! Thanks!
_________________

Click +1 Kudos if my post helped...

Amazing Free video explanation for all Quant questions from OG 13 and much more http://www.gmatquantum.com/og13th/

GMAT Prep software What if scenarios http://gmatclub.com/forum/gmat-prep-software-analysis-and-what-if-scenarios-146146.html

VP
Status: Far, far away!
Joined: 02 Sep 2012
Posts: 1123
Location: Italy
Concentration: Finance, Entrepreneurship
GPA: 3.8
Followers: 181

Kudos [?]: 1967 [1] , given: 219

Re: A milepost on the towpath read 21 on the side facing the [#permalink]

### Show Tags

27 May 2013, 01:12
1
KUDOS
fozzzy wrote:
Can someone please provide detailed explanation! Thanks!

A milepost on the towpath read “21” on the side facing the hiker as she approached it and “23” on its back. She reasoned that the next milepost forward on the path would indicate that she was halfway between one end of the path and the other. However, the milepost one mile further on read “20” facing her and “24” behind.

Which of the following, if true, would explain the discrepancy described above?

(B) The numbers on the mileposts indicate kilometers, not miles. - this would make no difference
(E) The mileposts had originally been put in place for the use of mountain bikers, not for hikers. - this would make no difference

We are left with

(A) The numbers on the next milepost had been reversed.
(C) The facing numbers indicate miles to the end of the path, not miles from the beginning.
(D) A milepost was missing between the two the hiker encountered.

The milepost has a side with "21"(other side "23").She is running and thinks a "22" will follow

However a 20 is on the next milepost, with a 24 on its back.

In her logic the numbers increase 21+1=22 so this count is the number of miles she has run. (=miles from the beginning)
In her path she encounters a decrease 21-1=20 so the actual number does not represent the miles she has run, but the miles LEFT to run.(=miles to the end of the path)

Example: 10 miles
10-9-8-7-6-5-4-3-2-1 Miles to the end=> decrease
1-2-3-4-5-6-7-8-9-10 Miles from the beg.=> increase
_________________

It is beyond a doubt that all our knowledge that begins with experience.

Kant , Critique of Pure Reason

Tips and tricks: Inequalities , Mixture | Review: MGMAT workshop
Strategy: SmartGMAT v1.0 | Questions: Verbal challenge SC I-II- CR New SC set out !! , My Quant

Rules for Posting in the Verbal Forum - Rules for Posting in the Quant Forum[/size][/color][/b]

GMAT Club Legend
Joined: 01 Oct 2013
Posts: 10538
Followers: 919

Kudos [?]: 204 [0], given: 0

Re: A milepost on the towpath read 21 on the side facing the [#permalink]

### Show Tags

19 Jun 2016, 04:16
Hello from the GMAT Club VerbalBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
Re: A milepost on the towpath read 21 on the side facing the   [#permalink] 19 Jun 2016, 04:16
Similar topics Replies Last post
Similar
Topics:
A milepost on the towpath read 21 on the side facing the 0 26 Jul 2010, 21:03
17 GmatPrep-BoldFace 13 22 Aug 2009, 17:37
BOLD FACE CR 7 05 Oct 2008, 05:23
A milepost on the towpath read 21 on the side facing the 0 27 May 2013, 01:12
Strategy for Bold face CR 0 11 Jul 2007, 18:58
Display posts from previous: Sort by