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数学
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一道及其简单的sat数学题!
What percent of the integers from 3 to 12, inclusive, are neither primes nor multiples of 4
答案是30%为什么?!我算出来70%
O(∩_∩)O谢谢
人气:336 ℃ 时间:2020-05-29 03:01:35
解答
从3到12一共有10个整数,其中只有6、9、10既不是质数也不是4的倍数,所以一共只有3个.3除以10就是30%
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