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2013年12月03 SAT官方每日一題
2013-12-08 16:33 | 編輯：川外教育　　來自：未知　
導(dǎo)讀：考試類型: Mathematics Standard Multiple Choice Read the following SAT test question and then click on a button to select your answer. There are students in a biology class, and only of them are seniors. If juniors are added to the class, h

考試類型: Mathematics > Standard Multiple Choice

 

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

There are n students in a biology class, and only 6 of them are seniors. If 7 juniors are added to the class, how many students in the class will not be seniors?

 

 

A. n minus 3

B. n minus 2

C. n minus 1

D. n + 1

E. n + 2

 

正確答案:D

解析:

At first, there are n students in the class, and 6 of them are seniors. It follows that initially n minus 6 students are not seniors. If 7 juniors are added to the class, there will be n minus 6 + 7, or n + 1, students in the class who are not seniors.

 

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