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.

...........

Expert replies
Post new topic Post Reply
Previous Topic Next Topic
Source: — Problem Solving |
Legendary Member
Posts: 966
Joined: Sat Jan 02, 2010 8:06 amFollowed by: 21 members
Thanked: 230 times

by shankar.ashwin » Wed Oct 19, 2011 6:25 am
Work done by 1 man in 1 day - 1/(29*4)
Work done by 1 boy in 1 day - 1/(29*7)

Together 12 men and 8 boys will do 12/(29*4) + 8/(29*7) (or) 1/7 work in 1 day.

Hence they will require 7 days to complete the job.
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY

GMAT/MBA Expert

User avatar
GMAT Instructor
Posts: 3835
Joined: Fri Apr 02, 2010 10:00 pmFollowed by: 523 members
Location: Milpitas, CA
Thanked: 1854 times
GMAT Score:770

by Anurag@Gurome » Wed Oct 19, 2011 6:27 am
Almasha wrote:IF 4 men OR 7 boys can do a work in 29 days how much time will 12 men AND 8 boys take?
4 men can do the work in 29 days.
Hence, one man in one day does 1/(4*29) of the work
Hence, 12 men in one day do 12/(4*29) of the work

7 boys can do the work in 29 days.
Hence, one boy in one day does 1/(7*29) of the work
Hence, 8 boys in one day do 8/(7*29) of the work

Hence, 12 men and 8 boys in one day do [12/(4*29) + 8/(7*29)] = [(12*7 + 4*8)/(4*7*29)] = [4(3*7 + 8)/(4*7*29)] = [4*29/(4*7*29)] = 1/7 of the work

Hence, 12 men and 8 boys will finish the work in 7 days.
Anurag Mairal, Ph.D., MBA
GMAT Expert, Admissions and Career Guidance
Gurome, Inc.
1-800-566-4043 (USA)

Join Our Facebook Groups
GMAT with Gurome
https://www.facebook.com/groups/272466352793633/
Admissions with Gurome
https://www.facebook.com/groups/461459690536574/
Career Advising with Gurome
https://www.facebook.com/groups/360435787349781/
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
User avatar
Community Manager
Posts: 1060
Joined: Fri May 13, 2011 6:46 amFollowed by: 52 members
Location: Utrecht, The Netherlands
Thanked: 318 times

by neelgandham » Wed Oct 19, 2011 6:31 am
IF 4 men OR 7 boys can do a work in 29 days how much time will 12 men AND 8 boys take?

4 men can complete a work in 29 days
12 men can complete it in 29*4/12 = 29/3 days

7 boys can complete a work in 29 days
8 boys can complete it in 29*7/8 days

In 1 day, 12 men can complete (3/29)th of the work
In 1 day, 7 boys can complete (8/(7*29))th of the work

Total work completed on a given day = (3/29) + (8/(7*29)) = 1/7

In one day, 1/7 of the work is done. So it would take 7 days for 12 men AND 8 boys to complete the work !
Anil Gandham
Welcome to BEATtheGMAT | Photography | Getting Started | BTG Community rules | MBA Watch
Check out GMAT Prep Now's online course at https://www.gmatprepnow.com/
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
User avatar
Newbie | Next Rank: 10 Posts
Posts: 5
Joined: Mon Oct 17, 2011 5:43 am

by Almasha » Wed Oct 19, 2011 6:44 am
Everybody is taking it as tough.. thats why i am feeling like "confused" after getting many responses. :(
I am not getting over it..
:( :!:
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 » Wed Oct 19, 2011 7:19 am
Almasha wrote:IF 4 men OR 7 boys can do a work in 29 days how much time will 12 men AND 8 boys take?
???
Plug in numbers so that the rate for 4 men = the rate for 7 boys.

Let the rate for each man = 7 units per day.
Rate for 4 men = 4*7 = 28 units per day.

Let the rate for each boy = 4 units per day.
Rate for 7 boys = 7*4 = 28 units per day.

Work completed by each group in 29 days = r*t = 28*29 units.

Combined rate for 12 men and 8 boys = (12*7) + (8*4) = 116 units per day.
Time to complete the job = w/r = (28*29)/116 = 7 days.
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
Master | Next Rank: 500 Posts
Posts: 385
Joined: Fri Sep 23, 2011 9:02 pmFollowed by: 6 members
Thanked: 62 times

by user123321 » Wed Oct 19, 2011 11:27 am
if observed closely
4M = 7B
=>12M & 8B => 7(3)B&8B => 29B

if 7B takes 29 days
then 29 boys will take 7 days, which is the answer

user123321
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Post new topic Post Reply
• Page 1 of 1