1.If the ratio of men to women employed by Company S in 1975 was 1/2, What is the ratio of men to women employed by Company S in 1976? (1) Company S employed 20 more women in 1976 than in 1975. (2)Company S employed 20 more men in 1976 than in 1975. 我知道这两格条件单独分开是都不行的.. 但结合在一起不是可以设X Y 求出XY 然後知道1976年的比率 但答案是~~E 2.Exactly how many bonds dose Bob have? (1)Of Bob's bonds , exactly 21 are worth at least $5.000 each (2)Of Bob's bonds , exactly 65 percent are worth less than $5.000 each. 第一条件我看不太懂说.... 答案C 3.What is the value of the two-digit number X? (1)the sum of the two digits is 4. (2)the difference betweeb the two digits is 2. 我想问我翻这一题的意思对不对?? 求出两位数为何?? 1=>两数相加=4 2=>两数(different between)相减=3 答案~(E) 4. Aectangle is defined to be "silver" if and only if the ratio of its length to its width is 2 to 1. If rectangle S is silver, is rectangle R silver? (1) R has the same area as 5 (2)The ratio of one side if R to one side of S is 2 to 1. 看不待懂题目... 答案E 5.is XY<0? (1)X^2*Y^3<0 (2)X*Y^2>0 答案 C 6.What is the volume of rectangular box R? (1)The total surface area of R is 12 square meters. (2) The height of R is 50 centimeters volume of rectangular 长方体 容积 = 长*宽*高 (1)surface翻面积妈?? 如果是~~就是 长*宽=12 m^2 (2)Height 我不知道是不是指长方提的"高"阿?? 如果是 有长有高也有宽 应该求的出来~ 答案是c 但答案是 E 感谢～～ --

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