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 7 seats left
Chris Peckover
NEXT LIVE COHORT

Oct 13 to Jan 7, 2027

with Chris Peckover

Schedule
Tue, Thu · 8:00 to 10:00 PM ET
Included
40 live hours + 6 months of GMAT OnDemand
  • Live instruction and real-time questions
  • Class recordings and assigned practice
View class & enroll
Limited cohort · enrollment openTarget Test Prep
EALiveTeach 5 seats left
Logan Thompson
EXECUTIVE ASSESSMENT

Sep 6 to Dec 6, 2026

with Logan Thompson

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
Limited cohort · enrollment openTarget 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.

PS Question

Expert replies
Post new topic Post Reply
Previous Topic Next Topic
Source: — Problem Solving |
User avatar
Master | Next Rank: 500 Posts
Posts: 436
Joined: Tue Feb 08, 2011 3:07 amFollowed by: 6 members
Thanked: 72 times

by manpsingh87 » Tue Apr 19, 2011 7:58 am
Strongt wrote:If w/x = 2/3 and w/y = 8/15, then (x + y)/y =

answer is [spoiler]9/5[/spoiler]

I get to the point where 3w = 2x; and 15w = 8y, then I dont get how the next step is made
x=(3/2)w; y=(15/8)w;
x+y=(3/2)w+(15/8)w = (12+15)w/8=27w/8;
x+y/y=(27w/8)*(8/15w)=9/5..!!!
O Excellence... my search for you is on... you can be far.. but not beyond my reach!
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Legendary Member
Posts: 1084
Joined: Fri Apr 15, 2011 2:33 pmFollowed by: 21 members
Thanked: 158 times

by pemdas » Tue Apr 19, 2011 8:05 am
w/x = 2/3 and w/y = 8/15,

then (x + y)/y = ?

let's rewrite -> w/x = 2*4/3*4 OR 8/12

now w : x : y = 8:12:15, (x + y)/y = x/y +1 OR (12/15 +1)= 4/5 + 1 = 9/5
Success doesn't come overnight!
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY

GMAT/MBA Expert

User avatar
GMAT Instructor
Posts: 2623
Joined: Mon Jun 02, 2008 3:17 amFollowed by: 355 members
Location: Montreal
Thanked: 1090 times
GMAT Score:780

by Ian Stewart » Tue Apr 19, 2011 9:14 am
Strongt wrote:If w/x = 2/3 and w/y = 8/15, then (x + y)/y =

answer is [spoiler]9/5[/spoiler]

I get to the point where 3w = 2x; and 15w = 8y, then I dont get how the next step is made
There are a number of possible approaches here. First you might notice that we only need to find the ratio of x to y to complete the question since:

(x+y)/y = (x/y) + (y/y) = (x/y) + 1

Now we can multiply the given fractions so that the w cancels and we are left with x/y. Since w/x = 2/3, it must be that x/w = 3/2. so:

(x/w)(w/y) = x/y = (3/2)(8/15) = 4/5

and (x/y) + 1 = 9/5
For online GMAT math tutoring, or to buy my higher-level Quant books and problem sets, contact me at ianstewartgmat at gmail.com

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