BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course

Redeem

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.

★★★★★5.0559 reviews
GMATLiveTeach Starts Oct 17
Chris Peckover, Target Test Prep GMAT expert
LIVE ONLINE CLASSES

Get Ready for GMAT Test Day Faster with Live Online Classes

with Chris Peckover, 100th-Percentile GMAT Scorer

Oct 17 · Chris Peckover
Sat · 11:00 AM to 2:00 PM ET
Oct 20 · Chris Peckover
Tue, Thu · 8:00 to 10:00 PM ET
Oct 25 · Josh Braslow
Sun · 1:00 to 4:00 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
EALiveTeachOnDemand 5 seats left Start anytime
EXECUTIVE ASSESSMENT

Target Test Prep EA OnDemand

Self-paced EA prep. Study on your schedule.

Logan Thompson
EXECUTIVE ASSESSMENT

Sep 6 to Dec 6, 2026

with Logan Thompson

165+ EA score guarantee
$05-day trial no automatic billing
Schedule
Sun · 9:30 AM to 12:30 PM ET
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
GMATOnDemand Start 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 559 reviewsTarget Test Prep

Compare the format, schedule, and included access before enrolling. Prices and seat counts shown reflect the supplied offer details.

speed distance prob

Expert replies
Post new topic Post Reply
Previous Topic Next Topic
Senior | Next Rank: 100 Posts
Posts: 96
Joined: Fri Apr 23, 2010 1:14 amFollowed by: 1 member
Thanked: 1 times
by quantskillsgmat » Mon Aug 22, 2011 3:09 am
A and B starts moving towards each other from newyork and chicago along a straight line with constant speeds.After meeting in midway A reaches chicago in 9 hrs and B newyork in 16 hrs.fied ratio of their speeds.
4:3
3:4
5:4
4:5
1:2
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Source: — Problem Solving |
User avatar
GMAT Instructor
Posts: 15539
Joined: Tue May 25, 2010 12:04 pmFollowed by: 1906 members
Location: New York, NY
Thanked: 13060 times
GMAT Score:790

by GMATGuruNY » Mon Aug 22, 2011 3:47 am
quantskillsgmat wrote:A and B starts moving towards each other from newyork and chicago along a straight line with constant speeds.After meeting in midway A reaches chicago in 9 hrs and B newyork in 16 hrs.fied ratio of their speeds.
4:3
3:4
5:4
4:5
1:2
We can plug in the answers, which represent the ratio of A's rate to B's rate.

After A and B meet, A takes less time to finish traveling than B, so A is moving at a faster rate.
Eliminate B, D and E.

Answer choice A: 4:3.
Let A's rate = 4 miles per hour and B's rate = 3 miles per hour.
When elements travel toward each other, we combine their rates, since the elements are working together to cover the distance between them.
Combined rate for A and B = 4+3 = 7 miles per hour.

Let d = 84 miles (the LCM of 4, 3 and 7).
Time for A and B to meet = d/(combined rate) = 84/7 = 12 hours.

In 12 hours, distance traveled by A = r*t = 4*12 = 48 miles.
Remaining distance for A = 84-48 = 36 miles.
Time for A to finish traveling = d/r = 36/4 = 9 hours.

In 12 hours, distance traveled by B = r*t = 3*12 = 36 miles.
Remaining distance for B = 84-36 = 48 miles.
Time for B to finish traveling = d/r = 48/3 = 16 hours.
Success!

The correct answer is A.
Private tutor exclusively for the GMAT and GRE, with over 20 years of experience.
Followed here and elsewhere by over 1900 test-takers.
I have worked with students based in the US, Australia, Taiwan, China, Tajikistan, Kuwait, Saudi Arabia -- a long list of countries.
My students have been admitted to HBS, CBS, Tuck, Yale, Stern, Fuqua -- a long list of top programs.

As a tutor, I don't simply teach you how I would approach problems.
I unlock the best way for YOU to solve problems.

For more information, please email me (Mitch Hunt) at [email protected].
Student Review #1
Student Review #2
Student Review #3
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Senior | Next Rank: 100 Posts
Posts: 96
Joined: Fri Apr 23, 2010 1:14 amFollowed by: 1 member
Thanked: 1 times

by quantskillsgmat » Tue Aug 23, 2011 10:14 pm
this is nice approach but i want some mathemtical approach nt plug in.
can anyone help me.
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY

GMAT/MBA Expert

User avatar
GMAT Instructor
Posts: 3835
Joined: Fri Apr 02, 2010 10:00 pmFollowed by: 523 members
Location: Milpitas, CA
Thanked: 1854 times
GMAT Score:770

by Anurag@Gurome » Tue Aug 23, 2011 10:29 pm
quantskillsgmat wrote:A and B starts moving towards each other from newyork and chicago along a straight line with constant speeds.After meeting in midway A reaches chicago in 9 hrs and B newyork in 16 hrs.fied ratio of their speeds.
Say, speed of A and B in km/hrs are a and b respectively and they met after x hours.
Hence, in these x hours A has traveled ax kilometers and B has traveled bx kilometers.

After meeting B has traveled ax kilometers in 16 hours and A has traveled bx kilometers in 9 hours.

But according to our assumptions in 9 hours A will travel 9a kilometers and in 16 hours B will travel 16b kilometers.

Hence, ax = 16b and bx = 9a
Eliminating x from both, 16b/a = 9a/b

Therefore, a²/b² = 16/9 ----> a/b = 4/3

The correct answer is A.
Anurag Mairal, Ph.D., MBA
GMAT Expert, Admissions and Career Guidance
Gurome, Inc.
1-800-566-4043 (USA)

Join Our Facebook Groups
GMAT with Gurome
https://www.facebook.com/groups/272466352793633/
Admissions with Gurome
https://www.facebook.com/groups/461459690536574/
Career Advising with Gurome
https://www.facebook.com/groups/360435787349781/
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
User avatar
Legendary Member
Posts: 979
Joined: Tue Apr 14, 2009 1:38 amFollowed by: 12 members
Location: Hyderabad, India
Thanked: 49 times
GMAT Score:700

by bubbliiiiiiii » Wed Aug 24, 2011 12:31 am
My approach is as under,

Let d be the distance between New York and Chicago.

Since, A and B meet midway, the distance travelled when they met each other is d/2.

=> A covers the rest of the distance in 9 hrs => d/2 = 9a
and
B covers the rest of the distance in 16 hrs => d/2 = 16b

Eliminating d, we get a/b = 16/9.

I certainly know that this wrong but can you help me with what am I missing in the approach above?
Regards,

Pranay
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY

GMAT/MBA Expert

User avatar
GMAT Instructor
Posts: 3835
Joined: Fri Apr 02, 2010 10:00 pmFollowed by: 523 members
Location: Milpitas, CA
Thanked: 1854 times
GMAT Score:770

by Anurag@Gurome » Wed Aug 24, 2011 12:37 am
bubbliiiiiiii wrote:...Since, A and B meet midway, the distance travelled when they met each other is d/2.
You're not missing anything!
You're assuming extra!
:)
Anurag Mairal, Ph.D., MBA
GMAT Expert, Admissions and Career Guidance
Gurome, Inc.
1-800-566-4043 (USA)

Join Our Facebook Groups
GMAT with Gurome
https://www.facebook.com/groups/272466352793633/
Admissions with Gurome
https://www.facebook.com/groups/461459690536574/
Career Advising with Gurome
https://www.facebook.com/groups/360435787349781/
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
User avatar
Legendary Member
Posts: 979
Joined: Tue Apr 14, 2009 1:38 amFollowed by: 12 members
Location: Hyderabad, India
Thanked: 49 times
GMAT Score:700

by bubbliiiiiiii » Wed Aug 24, 2011 12:39 am
Anurag@Gurome wrote:
bubbliiiiiiii wrote:...Since, A and B meet midway, the distance travelled when they met each other is d/2.
You're not missing anything!
You're assuming extra!
:)
Thanks for clarifying. On self analysis, I reached the same conclusion but just wanted to confirm from a SME. :)
Regards,

Pranay
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Post new topic Post Reply
• Page 1 of 1