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题库 / Prep2007E1-DS-198
Did one of the 3 members of a certain team sell at least 2 raffle tickets yesterday?
(1) The 3 members sold a total of 6 raffle tickets yesterday.
(2) No 2 of the members sold the same number of raffle tickets yesterday.
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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No 2 of the members sold the same number of raffle tickets yesterday，所以这三个人卖的数量至少是0，1，2。从0开始数数，不能重复（就是没有两个人卖了同样的raffle），只能是0，1，2。不可能是000，111，011，001。所以至少有一个人卖了2个。
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