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# 数学基础相关 | ||
## 1. 概率与数理统计 | ||
1.1 一个袋子里有100个黑球和100个白球,每次随机拿出两个球丢掉,如果丢掉的是不同颜色的球,则从其他地方补充一个黑球到袋子里,如果颜色相同,则补充一个白球到袋子里。问:最后一个球是黑球和白球的概率分别为多大? | ||
**1.1** 一个袋子里有100个黑球和100个白球,每次随机拿出两个球丢掉,如果丢掉的是不同颜色的球,则从其他地方补充一个黑球到袋子里,如果颜色相同,则补充一个白球到袋子里。问:最后一个球是黑球和白球的概率分别为多大? | ||
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## 2. 智商题 | ||
2.1 A容器中有4L沙子,B容器中有4L米,假设米和沙子密度一样。有一个C容器是300ml, 第一步,用C从A中舀300ml到B中,混合均匀,第二步,用C从B冲舀300ml到A中混合均匀。再重复第一步和第二步,问这四步之后,A中的米和B中的沙子谁多? | ||
**2.1** A容器中有4L沙子,B容器中有4L米,假设米和沙子密度一样。有一个C容器是300ml, 第一步,用C从A中舀300ml到B中,混合均匀,第二步,用C从B冲舀300ml到A中混合均匀。再重复第一步和第二步,问这四步之后,A中的米和B中的沙子谁多? |