Is x < y ?
(1) 2x < 3y
(2) xy > 0
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.
Helr老師,每次遇到這種題,都會想比較久,不知道有沒有什麼便捷一些的方法呢?