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.

Problem 2

Expert replies
Post new topic Post Reply
Previous Topic Next Topic
User avatar
Senior | Next Rank: 100 Posts
Posts: 49
Joined: Mon Feb 10, 2014 1:18 amFollowed by: 3 members
by candygal79 » Thu Apr 03, 2014 3:13 am
A lawyer charges her clients $200 at first hour of her time and $ 150 for each additional hour. If the lawyer charged her new client $1,550 for a certain number of hours of her time , how much was the average charge per hour ?
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Source: — Problem Solving |
Master | Next Rank: 500 Posts
Posts: 379
Joined: Tue Sep 30, 2008 7:17 amFollowed by: 11 members
Location: NY
Thanked: 28 times

by abhasjha » Thu Apr 03, 2014 4:56 am
here is the question with options

A lawyer charges her clients $200 for the first hour of her time and $150 for each additional hour. If the lawyer charged her new client $1550 for a certain number of hours of her time, how much was the average (arithmetic mean) charge per hour?

A. $155
B. $160
C. $164
D. $172
E. $185

To find the average charge per hour, we need to know the total number of hours that the lawyer charged this particular client.
Now, total charge = $1550. From this we subtract $200, since thats what the lawyer charges for the first hour.

Therefore, 1550 - 200 = 1350. Now divide this by 150 since the lawyer charges $150 for every hour after the first hour.

Therefore, 1350/150 = 9 hrs.

Add, the initial 1 hour. Therefore, the lawyer charged her client $1550 for 10 hours, which gives us an average of $155/hr. And that is option A.
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
User avatar
Master | Next Rank: 500 Posts
Posts: 359
Joined: Wed Mar 11, 2009 4:37 amFollowed by: 2 members
Location: Kolkata, India
Thanked: 50 times

by Abhishek009 » Thu Apr 03, 2014 6:44 am
candygal79 wrote:A lawyer charges her clients $200 at first hour of her time and $ 150 for each additional hour. If the lawyer charged her new client $1,550 for a certain number of hours of her time , how much was the average charge per hour ?
Basically the charges of the lawyer consists of 2 components , a fixed charge of $ 200 thereafter a variable charge of $ 150


So , the equations stands as follows-

1550 = (150 X a ) + 200

1350 = 150a

a = 9

So the client used 9 additional hour and along with 1 hour @ $ 200

So in 10 hrs charges the client had to pay is = $ 1550

Hence average charges per hour is $ 155
Abhishek
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
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 Apr 03, 2014 7:12 am
A lawyer charges her clients $200 for the first hour of her time and $150 for each additional hour. If the lawyer charged her new client $1550 for a certain number of hours of her time, how much was the average (arithmetic mean) charge per hour?

A. $155
B. $160
C. $164
D. $172
E. $185
The answer choices represent the average charge per hour.
Since all of the values in the problem are INTEGERS, the correct answer choice must divide evenly into $1550, the total amount charged.
Only A divides evenly into 1550.

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

GMAT/MBA Expert

User avatar
GMAT Instructor
Posts: 8210
Joined: Sat Apr 25, 2015 10:56 amFollowed by: 29 members
Location: Los Angeles, CA
Thanked: 43 times

by Scott@TargetTestPrep » Tue Oct 15, 2019 6:33 pm
candygal79 wrote:A lawyer charges her clients $200 at first hour of her time and $ 150 for each additional hour. If the lawyer charged her new client $1,550 for a certain number of hours of her time , how much was the average charge per hour ?
We can let n = the total number of hours of the lawyer's service to her client and create the equation:

1550 = 200 + 150(n - 1)

1350 = 150n - 150

1500 = 150n

10 = n

Thus, the average charge per hour was 1550/10 = 155 dollars.

Answer: A

Scott Woodbury-Stewart
Founder and CEO
[email protected]

Image

See why Target Test Prep is rated 5 out of 5 stars on BEAT the GMAT. Read our reviews

ImageImage
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Junior | Next Rank: 30 Posts
Posts: 10
Joined: Thu Jul 18, 2019 5:59 am

reply

by Aditi Goyal » Tue Oct 15, 2019 8:45 pm
Let total no of hours devoted by lawyer = n
Total charge = $1550
This implies --> 200(1) + 150(n-1) = 1550
Solving above, n=10

Average cost per hour = 1550/10 = $155/hr
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Post new topic Post Reply
• Page 1 of 1