英语翻译a rope is cut off 4 times ,and each time a half part of the left is cut off,when the cutting comes to the 4th time,the length of the part left is 2 meters

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英语翻译a rope is cut off 4 times ,and each time a half part of the left is cut off,when the cutting comes to the 4th time,the length of the part left is 2 meters
英语翻译
a rope is cut off 4 times ,and each time a half part of the left is cut off,when the cutting comes to the 4th time,the length of the part left is 2 meters

英语翻译a rope is cut off 4 times ,and each time a half part of the left is cut off,when the cutting comes to the 4th time,the length of the part left is 2 meters
一条绳子被切四次,每次剩余部分的一半被切掉,到第四次时绳子余下的长度为2米.后应是问原先绳子多少米.

是说一个绳子被截断四次知道最后每段长度问原来的总长度吧?最后一段是两米,只需要知道一共多少段就行了,第一次分成2段,第二次就是4,第三次8,第四次16,所以总长32米。

一条绳子被剪了四次,每一次都减掉剩下部分的一半,当剪到第四次的时候,绳子剩下的长度是2米
这是一个公比为1/2的等比数列,绳子的原长是32米?

一根绳子被剪四次,每次剪掉剩下绳子长度的一半,当剪至第四次时,剩下的绳子还有2米长。

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一条绳子被切了4次 每次都在这条绳子的左半部分切 当这条绳子被切到第四次时 长度是2米。

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