问题如下：
For the December consumption basket in Exhibit 1, the value of the Paasche index is closest to:
选项：
A.116.
B.148.
C.160.
解释：
A is correct.
The Paasche index uses the current product mix of consumption combined with the variation of prices. So for December, its value is
(120 × 1 + 50 × 0.8)/(120 × 0.9 + 50 × 0.6) = (160/138) × 100 = 115.9
考点：Paasche index
派许指数下，使用当期消费篮子参与计算
直接套用公式，带入数据得到物价指数：
(120 × 1 + 50 × 0.8)/(120 × 0.9 + 50 × 0.6) = (160/138) × 100 = 115.9
(120 × 1 + 50 × 0.8)/(120 × 0.9 + 50 × 0.6) = (160/138) × 100
老师，为什么是× 100 ，而不是-1？其他的题都是-1
