问题
单项选择题
A real estate developer has bought 1,872 acres of land on which to build a new neighborhood. He plans to zone the area for roads, common area, and housing plots on a ratio of 2:3:8, respectively. If a planned lake will take up 16 acres of the common area, how many acres of the common area will be left over for the clubhouse and golf course ？（）
A. 128
B. 144
C. 416
D. 432
E. 450
答案
参考答案：C
解析：
The sum of the numbers in the stated ratio is 13, so the common area accounts for 3/13 of the total 1,872 acres, or 432. 432-16=416.
