题目内容
20.Here is a survey(调查) about how the 1,000 students from No.2 Middle School go to school on weekdays.One third of the students going to school by bike are girls.Then according to the form below,_____boys go to school in the same way.( )| By bus | By bike | By car | On foot |
| 40% | 36% | 9% |
| A. | 150 | B. | 100 | C. | 50 |
分析 这是一个有关第二中学的1000名学生在工作日如何去学校的一个调查表,骑自行车上学的学生中三分之一是女生.然后根据下面的表格,有多少名男孩用相同的方式去学校.
解答 答案:B.
通过观察表格可知:By bus的人占40%,By car的人占36%,On foot的人占9%,那么By bike的人占1-40%-36%-9%=15%,所以有1000×15%=150人骑自行车去上学,再One third of the students going to school by bike are girls,可知骑自行车上学的学生中三分之一是女生,那么男生就是占骑自行车上学的学生中三分之二,150×2/3=100人.
故选:B.
点评 此题为英文常识题,重在考查考生的计算及理解能力.
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