[計量] The price of a certain hardback book ...

看板GRE (GRE入學考試)作者minusthree (minus3)時間17年前 (2008/10/21 16:44)推噓4(4推 0噓 2→)

留言6則, 5人參與討論串1/2 (看更多)

1. a ,b are non-negative integrate column A : (a + b)^◇ column B: a + b^◇ ans : c 2. x= 4y and x≠0 , column A : the percent of x+y that x present column B: 75% ans:b 3. The volume of a cube is 64 , column A : the area of the base of the cube column B: 32 ans:b 4. the price of a certain hardback book is 3 times the price of the paperback edition of the same book. At a sale, the number if hardback books sold was 5 times the number of paperback editions sold. If a total of $ 600 was collected from the sale of this book, how much was collected from the sale of the paperback edition? a) $ 37.5 b) $ 40.00 c) $66.67 d) $75.00 e) $ 360.0 ans: e 我一直算出來 A 不知道是不是我題目意思理解錯了希望有高手可以也解釋一下題目的意思^^a 5. a couple sold their home 5 months before the annual coverage on their homeowner’s policy expired. If the company’s policy is to return 1/12 of the yearly premium for each month the policy is not used and their premium was $168 a year, how much of their payment would the insurance company return to them? a) $65 b) $70 c) $75 d) $93 e) $ 98 ans: c 我算出來是bㄟ.....T_T 6. a grocer has 400 pounds of coffee in stock, 20 percent of which is decaffeinated. If the grocer buys another 100 pounds of coffee of which 60 percent is decaffeinated,what percent , by weight , of the grocer’s stock of coffee is decaffeinated? a) 28% b) 30% c) 32% d)34% e) 40% ans: d 7. 一個@,2個 $, 2個 #, 組成一個5位元的密碼 column a: 總排列數 columnb: 30 ans: c ================================================== 我問了好多.....|||||先謝謝各位高手幫忙麻煩大家了倒數幾天就要考試了......還是一點自信都沒有T_T -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 118.166.51.120