If the average (arithmetic mean) of the five numbers x, 7, 2, 16, and 11 is equal to the median of the five numbers, what is the value of x ?
(1) 7 < x < 11
(2) x is the median of the five numbers.
Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
EACH statement ALONE is sufficient.
Statements (1) and (2) TOGETHER are NOT sufficient.
老师你好,这道题没有define 这些数字是integers,所以说这些数也有可能是小数,是、这是我选E的原因, 举例, 8.8, 9 和 9.2 都符合条件。请问您有没有更好的解释,谢谢
小数的话你算过平均数吗?
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1和2本质上是相同的条件,确定1OK立刻可以选d了