Of the positive integers that are multiples of 30 and are less than or equal to 360,what fraction are multiples of 12?
其实这道题如果没有这个倒装,应该没有任何问题,换成正常的句式,就是:What fraction of the positive intergers that are multiples of 30 and are less than or equal to 360 are multiples of 12?所以这道题主要就是阅读的问题:A占B的几分之几用英文解释是:what fraction of B are A。因此,这个问题就归结于阅读问题,而这个阅读的问题不在于单词,而在于这么一点:不仅仅是单词,一些数学里面很“口语”化的内容用英文怎么表达?
再比如:In country A,a person is born every 3 seconds and a person dies every 20 seconds.Therefore,the birth and death rates account for a population growth rate of one person every___ seconds.