问题
单项选择题
In an effort to plan out expenses, the Roberts family is representing its annual budget as a circle graph. Each sector of the graph is proportional to the amount of the budget it represents. If "clothes and shoes" takes up 54° of the chart, how much of the Roberts’s $20,000 annual budget is dedicated to clothes and shoes ？（）
A. $1,500
B. $3,000
C. $4,500
D. $5,000
E. $5,400
答案
参考答案：B
解析：
54° is 15 percent of the 360° in a circle; 15 percent of $20,000 is $3,000.