|
Last Sunday a certainstore sold copies of Newspaper A for $1.00 each and copies of Newspaper Bfor $1.25 each, and the store sold no other newspapers that day. If r percent of the store’s revenuesfrom newspaper sales was from Newspaper A and if p percent of thenewspapers that the store sold were copies of newspaper B, which of the following expresses r in terms of p? A. 100p /(125 – p) B. 150p / (250 – p) C. 300p /(375 – p) D. 400p / (500 – p) E. 500p /(625 – p)
What is the value of 3-(x + y)/ 3-(x - y)? (1) x = 2 (2) y = 3 A. Statement (1) ALONE issufficient, but statement (2) alone is not sufficient. B.Statement (2) ALONE is sufficient, but statement (1) alone is notsufficient. C.BOTH statements TOGETHER are sufficient, but NEITHERstatement ALONE is sufficient. D. EACH statement ALONE issufficient. E. Statements (1) and (2) TOGETHERare NOT sufficient.
始终想不明白为什么B单独也可以。。。。。
| 
京公网安备11010202008513号 京ICP证101109号 京ICP备12012021号
发表于 2015-3-22 16:29:15
收藏
收藏
