※ 引述《smallwei12 (如果不要有那天)》之铭言： : p74#17. : A certain disability plan pays monthly benefits of 60 perecnt of the first : $2000 of monthly salary plus 40 percent of any portion in excees $2000-the : total monthly benefit not to exceed $2500. What is the smallest monthly salary : that will yield the maximum monthly benefit under this plan? : (A)$5750 : *[0;31m(B)$5250 : (C)$4500 : (D)$3250 : (E)$2200 题目说明了每个月的benefit为: 2000*0.6 + (portion in excess $2000)*0.4 <= 2500 (benefit not to exceed $2500; 不超过就是小於等於的意思吗? @@) ->1200 + (portion in excess $2000)*0.4 <= 2500 portion in excess $2000= $3250 所以salary = $2000 + $3250 = $5250 (B) 这题我算了两次,跟下午的GWD一样,我两次算出来的答案一个是(B),一个是(D) 因为我忍不住就把式子列成: 1200 + (salary-2000)*0.4 <= 2500 (唉,我还是不懂为什麽这样不行;我再考虑考虑...) : #18. : A cubical tank is filled with water to a level of 2 feet. If the waterin the : tank occupies 18 cubic feet, to what fraction of its capacity is the tank : filled with water? : (A)1/9 : (B)2/9 : (C)1/3 : (D)1/2 : *[0;31m(E)2/3 不好意思我看题目看到头晕...帮不了你... : #19. : For any number x ,「x」 denotes the least non-negative number y such that : x+y is an integer. What is the value of 8.4 - 「8.4」? : (A)-0.4 : (B)0 : (C)0.6 : *[0;31m(D)7.8 : (E)8.0 我想这题比较难懂的地方, 应该是"the least non-negative number such that x+y is an integer"吧: 「8.4」= 某个加上8.4之後会成为整数的数字的最小值非负数 = 0.6 所以8.4 - 「8.4」= 8.4 - 0.6 = 7.8 (D) : 请各位帮忙，谢谢各位!!小弟感激不尽(详解&翻译)~~谢谢●谢啦●谢啦●谢啦●谢啦●谢啦●谢啦●谢啦●谢啦●谢啦●谢啦●谢啦●谢啦● : ≧≦ : =◆◆= ◢▓◣ : ▕mmmm▏ │⊕⊕│ : ╭)◥◣◢◤(╮ │\－/│ : ║▏ ◥◤ ▕║ ╭|◎ ◎|╮ : ║ ████ ║ ║◥▓▓◤║ : ●▏ ▕● ▼ ███ ▼ : ▔▆▔▆▔ ║║ : █ █ ▉▉ : ▆▆ ▆▆ ◢ ◣ : ●谢啦●谢啦●谢啦●谢啦●谢啦●谢啦●谢啦●谢啦●谢啦●谢啦●谢啦●谢啦● --

※ 发信站: 批踢踢实业坊(ptt.cc) ◆ From: 61.66.187.115 ※ 编辑: a1985526 来自: 61.66.187.115 (11/01 22:21) ※ 编辑: a1985526 来自: 61.66.187.115 (11/01 22:24)