问题
单项选择题
If 12 percent of x is 30 percent of 480, then x is （）.
A. 144
B. 640
C. 960
D. 1,200
E. 1,440
答案
参考答案：D
解析：
First, 30 percent of 480 is 144. If 12 percent of x is 144, then x=144/0.12=1,200.
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