选项
A.The quantity in Column A is greater.
B.The quantity in Column B is greater.
C.The two quantities are equal.
D.The relationship cannot be determined from the information given.
解析
当百分比包含变量时,用分数转化计算。量A为:
x/100× 0.5/100× 40000 = 2x
量B为:
0.05/100 ×2000/100× 40x = 0.04x
由于x为正数,量A更大(即便x是分数,此结论依然成立)。