题目信息
The sum of the ages of Doris and Fred is y years. If Doris is 12 years older than Fred, how many years old will Fred be y years from now, in terms of y ?
A:y – 6
B:2y – 6
C:
– 6
– 6
D:
– 6
– 6
E:
– 6
– 6
参考答案及共享解析
共享解析来源为网络权威资源、GMAT高分考生等； 如有疑问，欢迎在评论区提问与讨论
本题耗时：
已选答案：
正确答案：
D: – 6
– 6
Algebra Applied problems
Let D and F represent Doris's and Fred's current ages, respectively. It is given that D + F = y and D = F + 12. It follows that (F + 12) + F = y and F =
= 
– 6. Therefore, Fred's age y years from now will be y + 
= 
– 6.
The correct answer is D.
Let D and F represent Doris's and Fred's current ages, respectively. It is given that D + F = y and D = F + 12. It follows that (F + 12) + F = y and F =
= – 6. Therefore, Fred's age y years from now will be y + = – 6.The correct answer is D.
加入收藏
在线答疑
题目来源
