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Source: — Data Sufficiency |

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by Night reader » Mon Jan 10, 2011 4:09 pm
GHong14 wrote:Image
Are 10% of population aged >= 65 years in country X employed?
st(1) 11.3% population @ 65 years old Not Sufficient
st(2) of population aged >= 65 years 20% are men and 10% are women; population (100%) = men + women, average men&women = 100/2 = 50% => 20% * 50% + 10% * 50% = 0.2*0.5 + 0.1*0.5 = 0.15 OR 15% Sufficient

Answer B - Yes 10% and more @ 65 and older are employed in country X