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.

OG11 PS 154 - Views appreciated!

Problem Solving — algebra and arithmetic (GMAT Focus Edition)
Expert replies
Post new topic Post Reply
Previous Topic Next Topic
Senior | Next Rank: 100 Posts
Posts: 43
Joined: Sun Apr 19, 2009 2:02 am
Thanked: 2 times
by T_A_M » Sun Apr 19, 2009 3:05 am
Hey guys!
Would like your views on OG11 PS 154.

An empty pool being filled with water at a constant rate takes 8 hours to fill 3/5 of it's capacity. How much more time will it take to finish filling the pool?

Now it is clear this is a rates and work questions, but why, in the rt = w equation, isn’t 8 used as the t variable (8 hrs should denote time). Whereas it is actually the amount of work done.

i.e. the correctly way to build the formula is 3/5 t = 8

Not sure why 8 is work?
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Source: — Quantitative Reasoning |
Senior | Next Rank: 100 Posts
Posts: 31
Joined: Sat May 09, 2009 7:45 pm
Location: Bay Area
Thanked: 4 times

by david2008 » Sat May 09, 2009 7:49 pm
So I think the reason they did that is so you could do the calculation in one step. I agree that the most logical way to construct the equation is:

3/5=(8)(r)

Solve for r which equals 3/40

Then plug into:

1=(t)(3/40) and thus total time to fill the pool is (40/3) which you would then subtract 8 from and get 16/3
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Master | Next Rank: 500 Posts
Posts: 101
Joined: Tue Apr 07, 2009 12:30 am
Thanked: 2 times
GMAT Score:750

by Svedankae » Sun May 10, 2009 12:51 pm
hey,

dont think in formulas... just try to go at it logically:

8 hours equals 60% of the total time.

Total time * 60 % = 8 hours

So,

Total time minus 8 hours = Answer :)

13.3333 - 8 = 5.3333
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Post new topic Post Reply
• Page 1 of 1