• Economist Test Prep
    Free Trial & Practice Exam
    BEAT THE GMAT EXCLUSIVE

    Available with Beat the GMAT members only code

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

    Available with Beat the GMAT members only code

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

    Available with Beat the GMAT members only code

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

    Available with Beat the GMAT members only code

    MORE DETAILS
    EMPOWERgmat Slider
  • PrepScholar GMAT
    5 Day FREE Trial
    Study Smarter, Not Harder

    Available with Beat the GMAT members only code

    MORE DETAILS
    PrepScholar GMAT

Admissions Success Stories Cars Y and Z travel side-by-side at the same rate of speed

This topic has 1 expert reply and 0 member replies

Cars Y and Z travel side-by-side at the same rate of speed

Post Fri Aug 10, 2018 5:07 pm

Timer

00:00

Your Answer

A

B

C

D

E

Global Stats

Difficult





Cars Y and Z travel side-by-side at the same rate of speed along parallel roads as shown above. When car Y reaches point P, it forks to the left at angle x°, changes speed, and continues to stay even with car Z as shown by the dotted line. The speed of car Y beyond point P is what percent of the speed of car Z?

(1) The speed of car Z is 50 miles per hour.
(2) x = 45

OA B
Source: Veritas Prep

  • +1 Upvote Post
  • Quote
  • Flag
Post Mon Aug 13, 2018 5:02 am
BTGmoderatorDC wrote:


Cars Y and Z travel side-by-side at the same rate of speed along parallel roads as shown above. When car Y reaches point P, it forks to the left at angle x°, changes speed, and continues to stay even with car Z as shown by the dotted line. The speed of car Y beyond point P is what percent of the speed of car Z?

(1) The speed of car Z is 50 miles per hour.
(2) x = 45

OA B
Source: Veritas Prep
I assume that car Y and car Z start from the same points on their respective road at the same time, else the answer would be E.

Since car Y forked out at xº and evened out with car Z as shown in the diagram, car Y must increase its speed; compared to car Z, it traveled a greater distance. Since the question wants an answer in percent, the value of actual speed is redundant data; thus Statement 1 is insufficient.

With the information that xº = 45º, we can certainly determine the proportionate length of the hypotenuse (in terms of the base) of the right-angled triangle, ie., distance from point P till the dotted line. Thus, the two speeds are comparable. Sufficient.

The correct answer: B

Hope this helps!

-Jay
_________________
Manhattan Review

Locations: Manhattan Review Madhapur | GMAT Prep Kukatpally | GRE Prep Jayanagar | Tarnaka GRE Coaching | and many more...

Schedule your free consultation with an experienced GMAT Prep Advisor! Click here.

  • +1 Upvote Post
  • Quote
  • Flag

Top First Responders*

1 Jay@ManhattanReview 76 first replies
2 GMATGuruNY 61 first replies
3 Brent@GMATPrepNow 46 first replies
4 Rich.C@EMPOWERgma... 33 first replies
5 ceilidh.erickson 18 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 Brent@GMATPrepNow

GMAT Prep Now Teacher

107 posts
2 image description GMATGuruNY

The Princeton Review Teacher

94 posts
3 image description Jeff@TargetTestPrep

Target Test Prep

93 posts
4 image description Max@Math Revolution

Math Revolution

91 posts
5 image description Jay@ManhattanReview

Manhattan Review

88 posts
See More Top Beat The GMAT Experts