2. 职称英语
  3. The sum of the ages of Doris and Fred is y years．If Doris is 12 years older than

The sum of the ages of Doris and Fred is y years．If Doris is 12 years older than

游客2025-02-27  2
问题 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?
选项 A、y-6
B、2y-6
C、(y/2)-6
D、(3y-2)-6
E、(5y/2)-6
答案 D
解析 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 . Therefore, Fred’s age y yea’s from now will be
The correct answer is D.
转载请注明原文地址:https://www.tihaiku.com/zcyy/3974638.html
相关试题推荐
    随机试题
    最新回复(0)