Live GMAT classes with Target Test Prep start Nov 21 and Nov 22. First class free.

See classes
Target Test Prep · GMAT

Choose how you want to prepare

Learn live with an expert or move at your own pace. Every option includes the complete TTP study system.

Newsweek Readers’ Choice Awards 2026 winner: Target Test Prep, #1 Test Prep

Target Test Prep was voted #1 Best Test Prep in the 2026 Newsweek Readers’ Choice™ Awards.

★★★★★5.0563 reviews
GMATLiveTeachStarts Nov 22
Josh Braslow, Target Test Prep GMAT expert
LIVE ONLINE CLASSES

Get Ready for GMAT Test Day Faster with Live Online Classes

with Josh Braslow, 20+ years in test prep

Nov 22 · Josh Braslow
Sun · 9:30 AM to 12:30 PM ET
Included
40 hours of live online classes + 6 months of TTP OnDemand
  • Attend the first class for free
  • Every class is recorded, so you never fall behind
View classes & enroll
Limited seats availableTarget Test Prep
EALiveTeachOnDemandStart anytime
EXECUTIVE ASSESSMENT

Target Test Prep EA OnDemand

Self-paced EA prep. Study on your schedule.

EXECUTIVE ASSESSMENT

with

165+ EA score guarantee
$05-day trial no automatic billing
Schedule
Included
40 hours of live online classes plus six months of access to the complete TTP EA OnDemand course.
  • 165+ EA Score Guarantee
  • 4,100+ Quant, Verbal, and Integrated Reasoning practice questions
  • 400+ hours of in-depth video lessons
  • 3,000+ step-by-step video solutions
View EA class & enroll Start free 5-day trial
Limited cohort · enrollment openTrial includes full course accessTarget Test Prep
GMATOnDemandStart anytime
SELF-PACED MASTERCLASS

Target Test Prep GMAT OnDemand

Complete access from day one. Study on your schedule.

715+ score guarantee
$0to start then $127/mo
  • Personalized study plan and analytics
  • Thousands of lessons and practice questions
Start free 5-day trial
Read 563 reviewsTarget Test Prep

DS problems, need help

Expert replies
Post new topic Post Reply
Subscribe topic
Previous Topic Next Topic
Junior | Next Rank: 30 Posts
Posts: 13
Joined: Sat Jul 26, 2008 6:32 pm
by coolguy55220 » Wed Jan 21, 2009 9:12 pm
Hey guys,
just took 1st Gmat Prep test, got a 650. I am going over the problems.

1) I dont understand why i need 2nd statement... From the original statement it says Janet drives through SEVERAL tollbooths which i assume to be more than 2. So if its 3 tollbooths and and 25 miles, 2 of them have to be less than 10 miles apart... right? i guess not, maybe i shouldn't assume several means more than 2???
I choose A (statement 1 is sufficient) as the answer but its C (need both A + B)

2) Having problems figuring this one out.
Answer is C (Both statements taken together r sufficient)

Thx for the help
You do not have the required permissions to view the files attached to this post.
Top
Join the discussion
Source: — Data Sufficiency |
Junior | Next Rank: 30 Posts
Posts: 28
Joined: Sun Nov 02, 2008 12:35 pm
Thanked: 7 times

by sachinkr » Wed Jan 21, 2009 11:33 pm
Q1:

Statement 1 is insufficient in itself. Reason- there can be 3 tollgates and it can distance between each of them can be more than 10 miles. But in case it have 4 gates or more than atleast 1 will have less than 10 miles gap.
(Also there can be only 2 tollgates in which case the distance is 25km)

When we combine stmt 1 & 2 we can conclude that atleast a pair of gates will be less than 10 miles.

Q2.

Let's assume angle QRS = a, Angle QRS = QSR as QR = QS
Again assume angle TUS = b, Angle TUS = SUT as TU = ST

now we can express Angle RQS = 180-2a, Angle STU = 180-2b

In triangle QPT:
All three angles must be 180.
=> (180-2a) + 90 + (180-2b) = 180
or solving it you get (a+b) = 135

IN quadrilateral RSUP,
Angle SRP = 180-a , Angle SUP = 180-b

Sum of angles of quadrilateral is 360.
=> 90+ (180-a)+(180-b)+x = 360
=> 90 + x = a +b
=> x = 135-90 = 45
Top
Join the discussion
Junior | Next Rank: 30 Posts
Posts: 13
Joined: Sat Jul 26, 2008 6:32 pm

by coolguy55220 » Wed Jan 21, 2009 11:51 pm
nm, i get it... when i thought bout it in my head it seemed right but when i drew it out tollbooth @ 0 miles - tollbooth at 11 miles tollbooth at 22 miles... it made sense... wierd... wat a simple question 2 mess up on... Got carried away with the wrong thinking the whole time... this seems to happen alot, i think i need to be more focused...
Top
Join the discussion