In Country C, the unemployment rate among construction worke

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In Country C, the unemployment rate among construction worke [#permalink]

12 Dec 2012, 04:55

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Question Stats:

37% (03:17) correct

62% (01:38) wrong

based on 27 sessions

In Country C, the unemployment rate among construction workers dropped from 16 percent on September 1, 1992, to 9 percent on September 1, 1996. If the number of construction workers was 20 percent greater on September 1, 1996, than on September 1, 1992, what was the approximate percent change in the number of unemployed construction workers over this period?

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

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Re: In Country C, the unemployment rate among construction worke [#permalink]

12 Dec 2012, 05:03

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Walkabout wrote:

September 1, 1992
The total number of construction workers = 1,000 (assume);
16% are unemployed, thus the number of unemployed workers = 160.

September 1, 1996
The total number of construction workers = 1,200 (20% greater);
9% are unemployed, thus the number of unemployed workers = 108.

Decrease is 52, which is approximately 30% of 160.

Answer: B.
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Re: In Country C, the unemployment rate among construction worke [#permalink] 12 Dec 2012, 05:03

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In Country C, the unemployment rate among construction worke

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In Country C, the unemployment rate among construction worke

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