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标题: 一最新数学JJ [打印本页]

作者: joy 时间: 2002-7-27 01:44 标题: 一最新数学JJ

The rate of yesterday is 5 percent, and the rate of today is 1/4 of 1 percent less than yesterday. Then what is the possible rate of today:
a.0.003~0.005；b… c… d. 0.03~0.05； e…

着怎么解,请教各位大虾,thanks very much!

作者: khe01 时间: 2002-7-27 06:13

if today = X, then 5%-X/0.05=1/4*1%. Answer is D.

My answer is just for your reference.

作者: discard 时间: 2002-8-6 22:25

1/4 of 1 percent 是这样理解吗？我觉的
5％×（1－1％）×1/4＝X,
对吗？

作者: redpot 时间: 2002-8-10 09:14

??? can't get the meaning of the question.

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