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题库 / Prep2007E2-DS-151
Is the average (arithmetic mean) of 5 different positive integers at least 30 ?
(1) Each of the integers is a multiple of 10.
(2) The sum of the 5 integers is 160.
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.
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没注意是5个不同的正数。条件1也是单独成立的
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