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标题: 跪求一道数学题，OG12里166页98题 [打印本页]

作者: sillyalice 时间: 2010-1-23 15:50
标题: 跪求一道数学题，OG12里166页98题
题目如下：

On a scale that measures the intensity of a certain phonomenon, a reading of n+1 corresponds to an intensity that is 10 times the intensity corresponding to a reading of n. On that scale, the intensity corresponding to a reading of 8 is how many times as great as the intensity corresponding to a reading of 3?

我连题目都搞不懂，拜托了各位~~

作者: bzc 时间: 2010-1-23 16:41
意思就是当N+1是N的10倍的时候，8是3的多少倍，8到7=10倍，8到6=100倍，以此类推，应该是10的5次方吧，不知道对不对，自己的看法，希望大家指正

作者: zscsl 时间: 2010-1-23 17:05

意思就是当N+1是N的10倍的时候，8是3的多少倍，8到7=10倍，8到6=100倍，以此类推，应该是10的5次方吧，不知道对不对，自己的看法，希望大家指正

-- by 会员 bzc (2010/1/23 16:41:24)

同意楼上的做法~~~~

作者: sillyalice 时间: 2010-2-6 11:13
标题: 谢谢大家的解答，明白了，再帮我一题呗~~
也是OG12里520页的114题：
Guidebook writer：I have visited hotels throughout the country and have noticed that in those built before 1930 the quality.............on hotels built subsequently.
这题为什么选D呢？

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