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

Redeem

Expressway

This topic has expert replies
Post new topic Post Reply
Previous Topic Next Topic
User avatar
Legendary Member
Posts: 2109
Joined: Sun Apr 19, 2009 10:25 pm
Location: New Jersey
Thanked: 109 times
Followed by:79 members
GMAT Score:640

Expressway

by money9111 » Wed Feb 03, 2010 10:55 pm
A certain expressway has Exits J,K,L and M, in that order. What is the road distance from Exit K to Exit L?

(1) The road distance from Exit j to Exit L is 21 kilometers
(2) The road distance from Exit K to Exit M is 26 kilometers

Data sufficiency answer choices

OA E
My goal is to make MBA applicants take onus over their process.

My story from Pre-MBA to Cornell MBA - New Post in Pre-MBA blog

Me featured on Poets & Quants

Free Book for MBA Applicants

Top
Source: — Data Sufficiency |
User avatar
Legendary Member
Posts: 1560
Joined: Tue Nov 17, 2009 2:38 am
Thanked: 137 times
Followed by:5 members

by thephoenix » Wed Feb 03, 2010 11:18 pm
money9111 wrote:A certain expressway has Exits J,K,L and M, in that order. What is the road distance from Exit K to Exit L?

(1) The road distance from Exit j to Exit L is 21 kilometers
(2) The road distance from Exit K to Exit M is 26 kilometers

Data sufficiency answer choices

OA E
ind bth are insuff
combing we dnt knw total dis hence we cant find
dis b/n K and L
Top
User avatar
Community Manager
Posts: 1537
Joined: Mon Aug 10, 2009 6:10 pm
Thanked: 653 times
Followed by:252 members

by papgust » Wed Feb 03, 2010 11:18 pm
Moved to "Data Sufficiency" section!

Please post the questions in the right folder. Thanks!
Top
User avatar
GMAT Instructor
Posts: 3650
Joined: Wed Jan 21, 2009 4:27 am
Location: India
Thanked: 267 times
Followed by:80 members
GMAT Score:760

by sanju09 » Thu Feb 04, 2010 1:28 am
money9111 wrote:A certain expressway has Exits J,K,L and M, in that order. What is the road distance from Exit K to Exit L?

(1) The road distance from Exit j to Exit L is 21 kilometers
(2) The road distance from Exit K to Exit M is 26 kilometers

Data sufficiency answer choices

OA E
<--------------------21-------------------->
J_____________________________L______________________
--------------------K<----------------------------26--------------------------->M



KL =?

(1) JK + KL = 21. Insufficient

(2) KL + LM = 26. Insufficient

Blending (1) and (2) serves no purpose as we only have two simultaneous equations in three variables.

[spoiler]E[/spoiler]
The mind is everything. What you think you become. -Lord Buddha



Sanjeev K Saxena
Quantitative Instructor
The Princeton Review - Manya Abroad
Lucknow-226001

www.manyagroup.com
Top
Junior | Next Rank: 30 Posts
Posts: 14
Joined: Thu Oct 08, 2009 12:34 am

by GhassanMBA » Thu Feb 04, 2010 3:04 am
Just wanted to pitch it how I solved it:

It is clear, as was already stated that both statements taken alone are insufficient

Taken together:
This might be a little strange but I used the Groups Equation.

G1 = 21
G2 = 26
Both = x (which is what we're trying to find)
Neither = 0 (there is no distance that is neither)

Total Distance= G1 + G2 - Both + Neither
Total Distance = 21 + 26 - x + 0
Total Distance = 47 - x

we don't have total distance => we can't find x

Answer: E
Top
User avatar
Legendary Member
Posts: 1132
Joined: Mon Jul 20, 2009 3:38 am
Location: India
Thanked: 64 times
Followed by:6 members
GMAT Score:760

by harsh.champ » Thu Feb 04, 2010 3:13 am
money9111 wrote:A certain expressway has Exits J,K,L and M, in that order. What is the road distance from Exit K to Exit L?

(1) The road distance from Exit j to Exit L is 21 kilometers
(2) The road distance from Exit K to Exit M is 26 kilometers

Data sufficiency answer choices

OA E
____________
Exit J to Exit L =21kms
Exit K to Exit M = 26 kms
Unless we are given that the distance between the exits are spaced out in a particular manner,we can't predict anything.
Hence,E should be the answer.
Top
User avatar
Legendary Member
Posts: 2109
Joined: Sun Apr 19, 2009 10:25 pm
Location: New Jersey
Thanked: 109 times
Followed by:79 members
GMAT Score:640

by money9111 » Thu Feb 04, 2010 8:28 am
i need to begin drawing things out instead of defaulting to "oh it can be solved w/ algebra"... becomes too confusing
My goal is to make MBA applicants take onus over their process.

My story from Pre-MBA to Cornell MBA - New Post in Pre-MBA blog

Me featured on Poets & Quants

Free Book for MBA Applicants

Top
Post new topic Post Reply
• Page 1 of 1