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.
是no two, 不是No. 2, 简写真的有毒
题目是at least所以2也可以
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。
关于Statement2, No.2不能是0张吗?没有说只有一个No2吧?为什么不能No1,卖出一张,No2和No3都卖出0张?没有说不能并列No2。
啥叫sold the same number of raffle tickets yesterday.
did one of the 3 members of a certain team, 指的是三个人中[存在]一个人卖了2张票及以上而不是[任意]一个人都卖了2张票及以上。在第二个条件下,任意两个人卖出的票数不同,所以最少是0,1,2,因此满足至少有一个人卖出了两张票及以上,答案选D。
注意题干 : Did one of the 3 members of a certain team sell at least 2 raffle tickets yesterday? 三个人中至少有一个人卖出大于2张?
statement 1里前两个人每人卖出1张 第三个人卖出4张的话不是不成立了吗
题目问at least 2, 而4大于2, 所以sufficient
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为什么 (2) 单独可以呢?觉得应该是 A啊
虽然这个题我也选A了,不过现在想想确实选D,三个人卖的数量不一样就按最少的来算也分别卖出0,1,2张,所以也一定能有一个人卖出的数量大于等于2。条件二是个陷阱啊
的确,是的
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