Of the numbers q,r,s,and t,which is greatest?
(1)The average(arithmetic mean) of q and r is s.
(2)The sum of q and r is t.
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.
考虑q/r为负数的情况
负数的情况
记得考虑分数和负数情况
负数。。。
负数啊负数!
忽略了可能为负数……