2017年12月10日SAT官方每日一题---数学选择.

　　为了让我们更好的适应sat考试，sat官网每天都会有sat官方每日一题，下面是小编为您整理的2015年12月sat官方每日一题，是数学选择，让我们一起来看一看这道数学选择吧。

　　Read the following SAT test question and then click on a button to select your answer.

　　How many positive integers less than or equal to 100 are multiples of 3 or multiples of 5 or multiples of both 3 and 5?

　　(A) 41

　　(B) 47

　　(C) 50

　　(D) 53

　　(E) 59

　　答案：B

　　解析：

　　The number of positive integer multiples of 3 that are less than or equal to 100 is 99 divided by 3 equals 33. The number of positive integer multiples of 5 that are less than or equal to 100 is 100 divided by 5 equals 20. The multiples of both 3 and 5 are the multiples of 3 times 5 equals 15, and there are 90 divided by 15 equals 6 positive integers less than 100 that are multiples of 15. The multiples of both 3 and 5 are counted twice when counts of the multiples of 3 and the multiples of 5 are added together, so the number of positive integers less than or equal to 100 that are multiples of 3 or multiples of 5 or multiples of both 3 and 5 is 33 plus 20 minus 6 equals 47.

　　上面是小编为您整理的2015年11月sat官方每日一题，是数学选择，为了让我们更好的适应sat考试，sat官网每天都会有sat官方每日一题，让我们一起来看一看这道数学选择吧。