单项选择题

If x+y=16, and if x2-y2=48, then x-y=（）

A. 3
B. 4
C. 6
D. 32
E. 36

<上一题 目录 下一题>
热门 试题

单项选择题
The main point of the passage is to（）

A. describe the premise of a science fiction novel
B. propose a remedy for traumatic brain injuries
C. question certain medical research
D. admit to the failings of pharmaceutical innovation
E. reject the concept of drug trials
单项选择题
In a crate of fruit that contained strawberries, blueberries, and raspberries, the ratio of the number of pints of strawberries to the number of pints of blueberries to the number of pints of raspberries was 6 to 4 to 5, respectively. If the crate contained a total of 45 pints of these fruits, how many more pints of strawberries than blueberries were there in the crate（）

A. 2
B. 3
C. 4
D. 5
E. 6
相关试题