数学试题

cici0109 · 发表于 2016-4-14 12:31:36

Quantitative Review的一道题。
The organizers of a fair projected a 25 percent increase in attendance this year over that of last year, but attendance this year actually decreased by 20 percent. What percent of the projected attendance was the actual attendance？
A.45%
B.56%
C.64%
D.75%
E80%
请问题意和具体怎么解？

z157254777 · 发表于 2016-4-14 12:45:56

set actual attendance of last year=X

this year projected=1.25X

this year actual= 0.8X

题目问今年实际出席率是预测的百分之多少， 0.8/1.25=64%

自己做的不知道答案对不对

mtong · 发表于 2016-4-14 13:15:36

正确答案：0.8/1.25

数学试题

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