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2018年SAT考试数学备考练习题(18)

2018-04-16 09:38

来源:新东方在线

作者:

  Read the following SAT test question and then click on a button to select your answer.

  In 2004, the number of people aged 16 years or older in the United States was approximately 223357000. According to the Bureau of Labor Statistics, at that time 66% of the population aged 16 and older was employed, and women made up about 46.4% of this category. Approximately how many women aged 16 and older were employed in 2004?

  A.68400000

  B.104000000

  C.147400000

  D.157000000

  【答案解析】

  答案:A

  解析:

  Choice A is correct. The number of people aged 16 and older who were employed in the United States in 2004 can be found by calculating 66% of 223357000.

  66% of 223357000 can be found as follows:

  0.66*223357000=147415620

  Hence 147415620 people aged 16 or older were employed in the United States in 2004.

  Of this number, 46.4% were women. To calculate the number of women in this age group who were employed, find 46.4% of 147415620:

  0.464*147415620=68400847.68

  Therefore, approximately 68400000 women aged 16 and older were employed in the United States in 2004.

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