新SAT数学每日练习：题目+重点词汇+解析!新SAT数学部分在考试中占据800分值，考生一定要在数学部分争取满分，拿满分自然要结合练习掌握考点。下面智课网为大家整理了新SAT数学每日练习题及答案解析。

In 2004, the number of people aged 16 years orolder in the United States was approximately223357000. According to the Bureau of Labor Statistics, at that time 66% of the populationaged 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

重点单词讲解：

multiple ['mʌltipl]

calculate ['kælkjuleit] v. 计算，估计，核算，计划，认为

population [.pɔpju'leiʃən] n. 人口 ，(全体)居民，人数

category ['kætigəri] n. 种类，类别

答案：D

解析：

Choice A is correct. The number of people aged 16and older who were employed in the United States in2004 can be found by calculating 66% of223357000.

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 whowere employed, find 46.4% of 147415620:

0.464*147415620=68400847.68

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