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### GMAT/MBA Expert

Rich.C@EMPOWERgmat.com Elite Legendary Member
Joined
23 Jun 2013
Posted:
9312 messages
Followed by:
478 members
2867
GMAT Score:
800
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

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

_________________
Contact Rich at Rich.C@empowergmat.com

### GMAT/MBA Expert

GMATGuruNY GMAT Instructor
Joined
25 May 2010
Posted:
14031 messages
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1813 members
13060
GMAT Score:
790
Mon Nov 30, 2015 11:45 am

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