• The Princeton Review
    FREE GMAT Exam
    Know how you'd score today for $0

    Available with Beat the GMAT members only code

    MORE DETAILS
    The Princeton Review
  • PrepScholar GMAT
    5 Day FREE Trial
    Study Smarter, Not Harder

    Available with Beat the GMAT members only code

    MORE DETAILS
    PrepScholar GMAT
  • Veritas Prep
    Free Veritas GMAT Class
    Experience Lesson 1 Live Free

    Available with Beat the GMAT members only code

    MORE DETAILS
    Veritas Prep
  • EMPOWERgmat Slider
    1 Hour Free
    BEAT THE GMAT EXCLUSIVE

    Available with Beat the GMAT members only code

    MORE DETAILS
    EMPOWERgmat Slider
  • Target Test Prep
    5-Day Free Trial
    5-day free, full-access trial TTP Quant

    Available with Beat the GMAT members only code

    MORE DETAILS
    Target Test Prep
  • Kaplan Test Prep
    Free Practice Test & Review
    How would you score if you took the GMAT

    Available with Beat the GMAT members only code

    MORE DETAILS
    Kaplan Test Prep
  • Varsity Tutors
    Award-winning private GMAT tutoring
    Register now and save up to $200

    Available with Beat the GMAT members only code

    MORE DETAILS
    Varsity Tutors
  • Economist Test Prep
    Free Trial & Practice Exam
    BEAT THE GMAT EXCLUSIVE

    Available with Beat the GMAT members only code

    MORE DETAILS
    Economist Test Prep
  • Magoosh
    Magoosh
    Study with Magoosh GMAT prep

    Available with Beat the GMAT members only code

    MORE DETAILS
    Magoosh
  • e-gmat Exclusive Offer
    Get 300+ Practice Questions
    25 Video lessons and 6 Webinars for FREE

    Available with Beat the GMAT members only code

    MORE DETAILS
    e-gmat Exclusive Offer

A zebra must get water from either a stream or pond. Which

This topic has 3 expert replies and 0 member replies

A zebra must get water from either a stream or pond. Which

Post

Timer

00:00

Your Answer

A

B

C

D

E

Global Stats

Difficult



Source: Princeton Review

A zebra must get water from either a stream or pond. Which of the two sources of water is closer to the zebra’s current position?

(1) Moving at a constant rate, it takes the zebra 2 hours to reach the stream from its current position.
(2) Moving at a constant rate, it takes the zebra 2 hours to reach the pond from the stream.

The OA is E

  • +1 Upvote Post
  • Quote
  • Flag

GMAT/MBA Expert

Post
Hi All,

We're told that a zebra must get water from either a stream or pond. We're asked which of the two sources of water is closer to the zebra’s current position.

1) Moving at a constant rate, it takes the zebra 2 hours to reach the stream from its current position.

Fact 1 tells us nothing about what this 'constant rate' is, so there's no way to determine the zebra's distance from the stream. We also know nothing about the zebra's distance from the pond.
Fact 1 is INSUFFICIENT

2) Moving at a constant rate, it takes the zebra 2 hours to reach the pond from the stream.

Fact 2 tells us nothing about what this 'constant rate' is, so there's no way to determine the zebra's distance from the pond. We also know nothing about the zebra's distance from the stream.
Fact 2 is INSUFFICIENT

Combined, we know...
-Moving at a constant rate, it takes the zebra 2 hours to reach the stream from its current position.
-Moving at a constant rate, it takes the zebra 2 hours to reach the pond from the stream.

Unfortunately, we don't know if the two 'constant rates' that are mentioned are the same OR not, so there's no way to gauge the relative distances to the stream and pond.
IF the two rates are equal, then the distances of the two water sources would be the same.
IF one rate is faster than the other, then the distance of the water source would be farther away than the other source.
Combined, INSUFFICIENT

Final Answer: E

GMAT assassins aren't born, they're made,
Rich

_________________
Contact Rich at Rich.C@empowergmat.com

  • +1 Upvote Post
  • Quote
  • Flag

GMAT/MBA Expert

Post
BTGmoderatorLU wrote:
Source: Princeton Review

A zebra must get water from either a stream or pond. Which of the two sources of water is closer to the zebra’s current position?

(1) Moving at a constant rate, it takes the zebra 2 hours to reach the stream from its current position.
(2) Moving at a constant rate, it takes the zebra 2 hours to reach the pond from the stream.

The OA is E
Target question: Which of the two sources of water is closer to the zebra’s current position?
Jump straight to....

Statements 1 and 2 COMBINED
There are several scenarios that satisfy BOTH statements. Here are two:
Case a: When traveling to the STREAM, the zebra heads EAST in a straight line at a constant speed of 1 mile per hour. So, the STREAM is 2 miles away from the zebra's starting point. When traveling from the STREAM TO THE POND, the zebra heads EAST at a constant speed of 1 mile per hour. So, the POND is 4 miles away from the zebra's starting point.
In this case, the answer to the target question is the STREAM is closer to the zebra

Case b: When traveling to the STREAM, the zebra heads EAST in a straight line at a constant speed of 1 mile per hour. So, the STREAM is 2 miles away from the zebra's starting point. When traveling from the STREAM TO THE POND, the zebra heads WEST at a constant speed of 1 mile per hour. So, the POND is 0 miles away from the zebra's starting point.
In this case, the answer to the target question is the POND is closer to the zebra

Since we cannot answer the target question with certainty, the combined statements are NOT SUFFICIENT

Answer: E

Cheers,
Brent

_________________
Brent Hanneson – Creator of GMATPrepNow.com
Use our video course along with Beat The GMAT's free 60-Day Study Guide

Sign up for our free Question of the Day emails
And check out all of our free resources

  • +1 Upvote Post
  • Quote
  • Flag
GMAT Prep Now's comprehensive video course can be used in conjunction with Beat The GMAT’s FREE 60-Day Study Guide and reach your target score in 2 months!

GMAT/MBA Expert

Post
Rich.C@EMPOWERgmat.com wrote:
Unfortunately, we don't know if the two 'constant rates' that are mentioned are the same OR not, so there's no way to gauge the relative distances to the stream and pond.
IF the two rates are equal, then the distances of the two water sources would be the same.
Even if the zebra's speed is the same in both cases, we can't conclude anything about the distances, since we aren't told anything about the direction the zebra is traveling. It may even be the case that the zebra is traveling in circles Smile

Cheers,
Brent

_________________
Brent Hanneson – Creator of GMATPrepNow.com
Use our video course along with Beat The GMAT's free 60-Day Study Guide

Sign up for our free Question of the Day emails
And check out all of our free resources

  • +1 Upvote Post
  • Quote
  • Flag
GMAT Prep Now's comprehensive video course can be used in conjunction with Beat The GMAT’s FREE 60-Day Study Guide and reach your target score in 2 months!

Top First Responders*

1 Jay@ManhattanReview 83 first replies
2 Brent@GMATPrepNow 68 first replies
3 fskilnik 55 first replies
4 GMATGuruNY 36 first replies
5 ceilidh.erickson 13 first replies
* Only counts replies to topics started in last 30 days
See More Top Beat The GMAT Members

Most Active Experts

1 image description fskilnik

GMAT Teacher

199 posts
2 image description Brent@GMATPrepNow

GMAT Prep Now Teacher

160 posts
3 image description Scott@TargetTestPrep

Target Test Prep

109 posts
4 image description Jay@ManhattanReview

Manhattan Review

95 posts
5 image description GMATGuruNY

The Princeton Review Teacher

90 posts
See More Top Beat The GMAT Experts