GWD19-32新问

Q32:

A certain list consists of 3 different numbers.  Does the median of the 3 numbers equal the average (arithmetic mean) of the 3 numbers?

(1)   The range of the 3 numbers is equal to twice the difference between the greatest number and the median.

(2)     The sum of the 3 numbers is equal to 3 times one of the numbers.

A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.

B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.

C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.

D. EACH statement ALONE is sufficient.

E. Statements (1) and (2) TOGETHER are NOT sufficient.

条件一没有问题，但条件二：举例1,3,2,,, sum of the list is 6, 3倍于其中的2，但是median是3啊，为什么答案是D呢？

还是我的median的概念搞错了？还是“list”的意思没搞明白？请指正。。。谢谢

可是1，3，2中间哪个数字不是3么？ 难道中数的概念是数值上出于中间的么？

ding