[計量] 請教幾題(新東方)

看板GRE作者 (do or die)時間16年前 (2008/05/30 23:54), 編輯推噓1(103)
留言4則, 4人參與, 最新討論串1/4 (看更多)
今天做了新東方的數學快速突破 後面附的120題 突然覺得很驚慌 ** What is the maximum number of cubes with sides of a length that could fit inside a cube of length 2s? (A) 8 (B) 16 (C) 32 (D) 64 (E) 128 ANS:D **During a sale at an office supply store, for every box of paper clips purchased for 15 cents, a second box can be purchased for 4 cents. How many boxes of paper clip did Paul buy if he spent 91 cents on boxes of paper clips? (A) 6 (B) 7 (C) 8 (D) 9 (E) 10 ANS:D **A group can charter a particular aircraft at a fixed total cost. If 36 people charter the aircraft rather than 40 people, then the cost per person is greater by $12. What is the cost per person if 40 people charter the aircraft? ANS: $108 **The numbers in the list above are ordered from least to greatest. If the average(arithmetic mean) is 2 greater than the median, what is the value of X ? (A) 22 (B) 20 (C) 17 (D) 16 (E) 15 ANS:A **A certain five-member committee must be assembled from a pool of five women --A, B, C, D and E, and three men-- X, Y, and Z, what is the probability that the committee will include B, C, E, Y, and Z? (A) 1/30 (B) 1/25 (C) 2/35 (D) 1/15 (E) 3/32 ANS:A **The enrollments at college X and college Y both grew by 8 percent from 1980 to 1985. If the enrollment at college X grew by 800 and the enrollment at college Y grew by 840, the enrollment at college Y was how much greater than the enrollment at college X in 1985? (A) 400 (B) 460 (C) 500 (D) 540 (E) 580 ANS:D 以上這幾題都是和朋友討論過後 覺得很有問題 不知道怎麼求出答案 或覺得答案超級怪的 麻煩板上高手行行好 幫個忙解答一下好嗎 先謝謝大家了!! -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 140.116.120.160

05/31 00:12, , 1F
第一題有圖嗎?
05/31 00:12, 1F

05/31 01:38, , 2F
第四題有數列嗎?
05/31 01:38, 2F

05/31 11:09, , 3F
都沒有耶~"~
05/31 11:09, 3F

05/31 22:34, , 4F
第一題應漏了 a length "s/2"
05/31 22:34, 4F
文章代碼(AID): #18G2D1mn (GRE)
文章代碼(AID): #18G2D1mn (GRE)