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.

Rate Problem 4

Expert replies
Post new topic Post Reply
Previous Topic Next Topic
Master | Next Rank: 500 Posts
Posts: 190
Joined: Thu Jan 14, 2010 8:29 pm
Thanked: 2 times
by phoenix9801 » Thu May 31, 2012 4:31 pm
Hi, If someone help me on rate problem please I would greatly Appropriate it. I just want to ensure I have done them correctly. Thanks


Jack made his first x dollars at an average rate of 50 dollars per hour and the remaining amount at an average rate of 60 dollars per hour. How long did it take Jack to make the first x dollars if he worked for a total of 10 hours averaging 53 dollars per hour?

A) 4.5
B) 6
C) 7
D) 9
E) 9.25
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 » Thu May 31, 2012 5:08 pm
phoenix9801 wrote:Hi, If someone help me on rate problem please I would greatly Appropriate it. I just want to ensure I have done them correctly. Thanks


Jack made his first x dollars at an average rate of 50 dollars per hour and the remaining amount at an average rate of 60 dollars per hour. How long did it take Jack to make the first x dollars if he worked for a total of 10 hours averaging 53 dollars per hour?

A) 4.5
B) 6
C) 7
D) 9
E) 9.25
Total amount earned = 10*53 = 530.

We can plug in the answers, which represent the time worked at a rate of 50 dollars per hour.

Answer choice C: 7 hours at 50 dollars per hour, implying 3 hours at 60 dollars per hour
Total earned = 7*50 + 3*60 = 350+180 = 530.
Success!

The correct answer is C.
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
User avatar
Master | Next Rank: 500 Posts
Posts: 287
Joined: Fri Mar 23, 2012 12:33 amFollowed by: 6 members
Location: Pune,India
Thanked: 60 times

by GMAT Kolaveri » Thu May 31, 2012 6:33 pm
Solving using Alligations method: It takes only few seconds to solve
A1------------------------------- A2
50------------------------------60

--------------- Aw
---------------- 53

A2-Aw -------------------------- Aw-A1
60-53--------------------------- 53-50
7------------------------ 3
Regards and Thanks,
Vinoth@GMAT Kolaveri
https://www.facebook.com/GmatKolaveri
https://gmatkolaveri.tumblr.com/

Click the thank you button if you like my reply :)
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
User avatar
Legendary Member
Posts: 520
Joined: Sat Apr 28, 2012 9:12 pmFollowed by: 49 members
Thanked: 339 times
GMAT Score:770

by eagleeye » Thu May 31, 2012 6:55 pm
Here's a traditional math reply. Its a simple equation to solve.

let the time required to make first x dollars be t (when the earning was 50$/hr) and then the remaining time is (10-t) (working at 60$ per hour).

Then we have 50*t + 60* (10-t) = 53*10 => 50t+600-60t=530, hence 10t = 70 or t = 7 hours.

Let me know if this helps :)
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Post new topic Post Reply
• Page 1 of 1