题目信息
Set S contains 4 numbers. The average of set S is 12. Exactly one number is added to set S, lowering the average of set S to 10. What is the number that was added to set S?
A:–4
B:–2
C:0
D:2
E:4
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:2
权威答案解析正在整理中,即将上线。


题目来源
Manhattan