The operation* represents either addition, subtraction, or multiplication of integers, what is the value of 1*0? (1) 0*2=2 (2) 2*0=2
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. 答案选A。 条件2为什么不行，在条件二中，*可以代表+或者-，不管是加或者减，1*0不都可以求出等于1吗？
EACH statement ALONE is sufficient.
Statements (1) and (2) TOGETHER are NOT sufficient.
During a 10-week summer vacation, was the average (arithmetic mean) number of books that Carolyn read per week greater than the average number of books that Jacob read per week? (1) Twice the average number of books that Carolyn read per week was greater than 5 less than twice the average number of books that Jacob read per week. (2) During the last 5 weeks of the vacation, Carolyn read a total of 3 books more than Jacob.[table=undefined][tr][td][td][/td][tr][td] [/td][td]Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient. [/td][/tr][tr][td][td][/td][tr][td] [/td][td]Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient. [/td][/tr][tr][td][td][/td][tr][td] [/td][td]BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient. [/td][/tr][tr][td][td][/td][tr][td] [/td][td]EACH statement ALONE is sufficient. [/td][/tr][tr][td][td][/td][tr][td] [/td][td]Statements (1) and (2) TOGETHER are NOT sufficient. [/td][/tr][/td][/tr][/td]E[/tr]
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发表于 2009-11-27 14:29:41
[/td][td]Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient. [/td][/tr][tr][td][td][/td][tr][td]
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