Live GMAT classes with Target Test Prep start Nov 21 and Nov 22. First class free.

See classes
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.

Newsweek Readers’ Choice Awards 2026 winner: Target Test Prep, #1 Test Prep

Target Test Prep was voted #1 Best Test Prep in the 2026 Newsweek Readers’ Choice™ Awards.

★★★★★5.0563 reviews
GMATLiveTeachStarts Nov 22
Josh Braslow, Target Test Prep GMAT expert
LIVE ONLINE CLASSES

Get Ready for GMAT Test Day Faster with Live Online Classes

with Josh Braslow, 20+ years in test prep

Nov 22 · Josh Braslow
Sun · 9:30 AM to 12:30 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
EALiveTeachOnDemandStart anytime
EXECUTIVE ASSESSMENT

Target Test Prep EA OnDemand

Self-paced EA prep. Study on your schedule.

EXECUTIVE ASSESSMENT

with

165+ EA score guarantee
$05-day trial no automatic billing
Schedule
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
GMATOnDemandStart 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 563 reviewsTarget Test Prep

Weighted Average-DS

Expert replies
Post new topic Post Reply
Subscribe topic
Previous Topic Next Topic
Master | Next Rank: 500 Posts
Posts: 131
Joined: Tue Aug 30, 2011 4:50 amFollowed by: 6 members
Location: India
Thanked: 28 times
by vishugogo » Tue Aug 13, 2013 11:02 am
At a certain company , 40% of women are over 50 years old and 50% of the men are over 50 years old. What percentage of the company are men?

1) 42% of all employees are over 50 years old.

2) There are 500 employees at the company.

OA A

I solved using Alligation

Using Statement 1:

Women 40----42-----50 Men.

Women/Men = 8/2 = 4/1

Here Men percentage is 20%

Sufficient

My question -- How is 20% the answer to question

Statement 2: Not sufficient
Top
Join the discussion
Source: — Problem Solving |

GMAT/MBA Expert

User avatar
Elite Legendary Member
Posts: 10391
Joined: Sun Jun 23, 2013 6:38 pmFollowed by: 511 members
Location: Palo Alto, CA
Thanked: 2867 times
GMAT Score:800

by [email protected] » Tue Aug 13, 2013 1:21 pm
Hi vishugogo,

Using the info from the prompt combined with the info from Fact 1, we have this...

F = Total number of Females
M = Total number of Males

40% of all women are over 50
50% of all men are over 50
42% of all employees are over 50

.4F + .5M = .42(F + M)

Now combine terms and simplify:
.4F + .5M = .42F + .42M
.08M = .02F
8M = 2F

M/F = 2/8
M/F = 1/4

So, for every 1 man, there are 4 women...
So, there is 1 man for every 5 total people

1/5 = 20%

GMAT assassins aren't born, they're made,
Rich
Contact Rich at [email protected]
Image
Top
Join the discussion
User avatar
Master | Next Rank: 500 Posts
Posts: 283
Joined: Sun Jun 23, 2013 11:56 pmFollowed by: 26 members
Location: Bangalore, India
Thanked: 97 times
GMAT Score:750

by ganeshrkamath » Tue Aug 13, 2013 9:50 pm
vishugogo wrote:At a certain company , 40% of women are over 50 years old and 50% of the men are over 50 years old. What percentage of the company are men?

1) 42% of all employees are over 50 years old.

2) There are 500 employees at the company.

OA A

I solved using Alligation

Using Statement 1:

Women 40----42-----50 Men.

Women/Men = 8/2 = 4/1

Here Men percentage is 20%

Sufficient

My question -- How is 20% the answer to question

Statement 2: Not sufficient
Statement 1 : 0.42 (M + W) = 0.4W + 0.5M
0.02W = 0.08M
W = 4M
So percentage of employees who are men = M / (M+W) * 100 % = M/(5M) * 100% = 20%
Sufficient.

Statement 2 : 500 employees in the company.
Since there's no information about the number of men or women, this information is useless.
Hence, not sufficient.

Choose A
Every job is a self-portrait of the person who did it. Autograph your work with excellence.

Kelley School of Business (Class of 2016)
GMAT Score: 750 V40 Q51 AWA 5 IR 8
https://www.beatthegmat.com/first-attemp ... tml#688494
Top
Join the discussion