• Kaplan Test Prep
    Free Practice Test & Review
    How would you score if you took the GMAT

    Available with Beat the GMAT members only code

    MORE DETAILS
    Kaplan Test Prep
  • Veritas Prep
    Free Veritas GMAT Class
    Experience Lesson 1 Live Free

    Available with Beat the GMAT members only code

    MORE DETAILS
    Veritas Prep
  • Varsity Tutors
    Award-winning private GMAT tutoring
    Register now and save up to $200

    Available with Beat the GMAT members only code

    MORE DETAILS
    Varsity Tutors
  • PrepScholar GMAT
    5 Day FREE Trial
    Study Smarter, Not Harder

    Available with Beat the GMAT members only code

    MORE DETAILS
    PrepScholar GMAT
  • Target Test Prep
    5-Day Free Trial
    5-day free, full-access trial TTP Quant

    Available with Beat the GMAT members only code

    MORE DETAILS
    Target Test Prep
  • e-gmat Exclusive Offer
    Get 300+ Practice Questions
    25 Video lessons and 6 Webinars for FREE

    Available with Beat the GMAT members only code

    MORE DETAILS
    e-gmat Exclusive Offer
  • Economist Test Prep
    Free Trial & Practice Exam
    BEAT THE GMAT EXCLUSIVE

    Available with Beat the GMAT members only code

    MORE DETAILS
    Economist Test Prep
  • EMPOWERgmat Slider
    1 Hour Free
    BEAT THE GMAT EXCLUSIVE

    Available with Beat the GMAT members only code

    MORE DETAILS
    EMPOWERgmat Slider
  • Magoosh
    Magoosh
    Study with Magoosh GMAT prep

    Available with Beat the GMAT members only code

    MORE DETAILS
    Magoosh

Unemployed rate

This topic has 2 expert replies and 1 member reply
Amrabdelnaby Master | Next Rank: 500 Posts Default Avatar
Joined
13 Nov 2015
Posted:
137 messages
Followed by:
2 members
Upvotes:
1

Unemployed rate

Post Mon Nov 30, 2015 11:42 am
In Country C, the unemployment rate among construction workers dropped from 16% on September 1, 1992 to 9% on September 1, 1996. If the number of construction workers was 20% greater on September 1, 1996, then on September 1, 1992, what was the approximate percent change in the number if unemployed construction workers over this period?

A) 50% decrease
B) 30% decrease
C) 15% decrease
D) 30% increase
E) 55% increase

Please help!

  • +1 Upvote Post
  • Quote
  • Flag
Need free GMAT or MBA advice from an expert? Register for Beat The GMAT now and post your question in these forums!
GMATinsight Legendary Member
Joined
10 May 2014
Posted:
1003 messages
Followed by:
21 members
Upvotes:
205
Top Reply
Post Tue Dec 01, 2015 9:51 pm
Amrabdelnaby wrote:
In Country C, the unemployment rate among construction workers dropped from 16% on September 1, 1992 to 9% on September 1, 1996. If the number of construction workers was 20% greater on September 1, 1996, then on September 1, 1992, what was the approximate percent change in the number if unemployed construction workers over this period?

A) 50% decrease
B) 30% decrease
C) 15% decrease
D) 30% increase
E) 55% increase

Please help!
Let total worker on September 1, 1992 = 100

then, total worker on September 1, 1996 = 100+20 = 120

Unemployed people on September 1, 1992 = 16% of 100 = 16
Unemployed people on September 1, 1996 = 9% of 120 = 10.8

% change = (10.8-16)*100/16 = -32.5% (Decrease)

Answer: Option B

_________________
Bhoopendra Singh & Sushma Jha - Founder "GMATinsight"
Testimonials e-mail: info@GMATinsight.com I Mobile: +91-9999687183 / +91-9891333772
To register for One-on-One FREE ONLINE DEMO Class Call/e-mail
One-On-One Private tutoring fee - US$40 per hour & for FULL COURSE (38 LIVE Sessions)-US$1000

  • +1 Upvote Post
  • Quote
  • Flag
Top Reply
Post Tue Dec 01, 2015 4:32 pm
Hi Amrabdelnaby,

This question can be solved by TESTing VALUES. You'll need to reorganize the information that you're given though (since it's offered 'out of order').

We're told that the NUMBER of construction workers was 20% greater in 1996 than in 1992.

Number of workers in '92 = 100
Number of workers in '96 = 120

We're told that the UNEMPLOYMENT RATE was 16% in 1992 and 9% in 1996. This allows us to figure out the NUMBER of unemployed workers...

Unemployed in '92 = 100(16%) = 16
Unemployed in '96 = 120(9%) = 10.8

The question asks for the APPROXIMATE Percent Change in the number of unemployed workers...

Percent Change = (New - Old)/Old = Difference/Original

With these numbers, we end up with...

(10.8 - 16)/16 = -5.2/16 = about -1/3 = about a 30% decrease

Final Answer: B

GMAT assassins aren't born, they're made,
Rich

_________________
Contact Rich at Rich.C@empowergmat.com

  • +1 Upvote Post
  • Quote
  • Flag
GMATinsight Legendary Member
Joined
10 May 2014
Posted:
1003 messages
Followed by:
21 members
Upvotes:
205
Post Tue Dec 01, 2015 9:51 pm
Amrabdelnaby wrote:
In Country C, the unemployment rate among construction workers dropped from 16% on September 1, 1992 to 9% on September 1, 1996. If the number of construction workers was 20% greater on September 1, 1996, then on September 1, 1992, what was the approximate percent change in the number if unemployed construction workers over this period?

A) 50% decrease
B) 30% decrease
C) 15% decrease
D) 30% increase
E) 55% increase

Please help!
Let total worker on September 1, 1992 = 100

then, total worker on September 1, 1996 = 100+20 = 120

Unemployed people on September 1, 1992 = 16% of 100 = 16
Unemployed people on September 1, 1996 = 9% of 120 = 10.8

% change = (10.8-16)*100/16 = -32.5% (Decrease)

Answer: Option B

_________________
Bhoopendra Singh & Sushma Jha - Founder "GMATinsight"
Testimonials e-mail: info@GMATinsight.com I Mobile: +91-9999687183 / +91-9891333772
To register for One-on-One FREE ONLINE DEMO Class Call/e-mail
One-On-One Private tutoring fee - US$40 per hour & for FULL COURSE (38 LIVE Sessions)-US$1000

  • +1 Upvote Post
  • Quote
  • Flag

Best Conversation Starters

1 lheiannie07 116 topics
2 LUANDATO 68 topics
3 swerve 65 topics
4 ardz24 65 topics
5 Roland2rule 64 topics
See More Top Beat The GMAT Members...

Most Active Experts

1 image description Scott@TargetTestPrep

Target Test Prep

198 posts
2 image description Brent@GMATPrepNow

GMAT Prep Now Teacher

181 posts
3 image description Jeff@TargetTestPrep

Target Test Prep

168 posts
4 image description Rich.C@EMPOWERgma...

EMPOWERgmat

134 posts
5 image description GMATGuruNY

The Princeton Review Teacher

119 posts
See More Top Beat The GMAT Experts