[計量] In a class of 120 students, 60 ...

看板GRE (GRE入學考試)作者 (花花兒)時間17年前 (2008/10/23 23:26), 編輯推噓1(103)
留言4則, 1人參與, 最新討論串1/3 (看更多)
BB 第591頁 26.In a class of 120 students, 60 percent can speak French and the rest can speak only English. If 25 percent of those in the class who can speak French can also speak English, how many of the students in the class can speak English? A:66 還有第29題 但是圖不會畫 如果好心人會的話 麻煩直接跟我說如何算就好!!! 30.The positive quantities X,Y and Z vaty over time, and 2x/3 always equals 16yz. If y is tripled and z is halved, then x is A:increased by 50% BB第619頁 9.On a 50-question multiple-choice test, 3 points weregiven for each question answered correctl and 1 point was deducted for each question answered incorrectly. A student who answered all of questions on the test received a total of 98 points. A column The number of questions on the test that the student answered incorrectly B column 14 還有第623頁的24題及25題 24題我怎麼算都是(D) 1070000 因為用41.7-17.4=24.3 再用4415000X0.243=.... 不是這樣算嗎 還有25題的三個選項都看無 麻煩好心人了 謝謝^^ -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 59.125.105.84

10/23 23:34, , 1F
26.French=120*60%=72
10/23 23:34, 1F

10/23 23:36, , 2F
剩下120-72=48 說英文
10/23 23:36, 2F

10/23 23:36, , 3F
會說法語和英文=72*25%=18
10/23 23:36, 3F

10/23 23:37, , 4F
所以會說英文的人有48+18=66人
10/23 23:37, 4F
文章代碼(AID): #1909UG7X (GRE)
文章代碼(AID): #1909UG7X (GRE)