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我的IBM蓝色之路–IBM笔经面经
IBM 笔试 三部分 第一部分 看矩阵题 时间 15 分钟 PartⅠ: 本部分计分方法为答对题数乘以 1 俾你一个矩阵: 1 2 3 4 5 ㈠ ㈡ ㈢ ㈣ ㈤ e a b d d c a c e b b c b e d c a e d a d e a b c (将你啲个人 电脑推至颠 峰,热卖中 详情请留意 aa 直销网站 会员有特价 回答以下问题。 问:⑴将第一行和第四行交换后,第一行第四个字母下面啲左边啲下面啲右 边啲字母係? ①a ②b ③c ④d ⑤e ⑵将所有出现在 d 左边啲字母从矩阵中删掉。将所有出现在 a 左边啲 c 字母 从矩阵中删掉。如果矩阵中剩低啲字母啲种类啲数目大于 3,答案为原 矩阵中左上方至右下方对角线上出现两次啲字母。如果矩阵中剩低啲字 母啲种类啲数目小于或者等于 3,答案为原矩阵中右上至左下对角线上 出现 4 次啲字母。 ①a ②b ③c ④d ⑤e P4 ⑶将所有啲 a 用 4 替换,所有啲 d 用 2 替换,边一列啲总和最大? ①㈠ ②㈡ ③㈢ ④㈣ ⑤㈤ ⑷从左上字母开始,沿顺时针沿矩阵外围,第四次出现啲字母係以下边个 ①a ②b ③c ④d ⑤e ⑸沿第 5 列从上到下,接着沿第 3 列从下到上,接着沿第 4 列从上到下,接着 沿第 1 列从下到上,接着沿第 2 列从上到下,第一个出现 5 次啲字母係? ①㈠ ②㈡ ③㈢ ④㈣ ⑤㈤ ⑷从左上字母开始,沿顺时针沿矩阵外围,第四次出现啲字母係以下边个 ①a ②b ③c ④d ⑤e ⑸沿第 5 列从上到下,接着沿第 3 列从下到上,接着沿第 4 列从上到下,接着 沿第 1 列从下到上,接着沿第 2 列从上到下,第一个出现 5 次啲字母係? ①a ②b ③c ④d ⑤e (请停止作答,等待提示翻到下一页) 第二部分:英文字母排序 时间 25 个人心得:先把 26 个字母写一排在纸上,容易找规律些。可惜做到一半采用此法。 题信大至是:aabbcc 选下一个为 d。当然有的不这么简单,有时跳了好多个,也有向前 或向后跳着的规律。所以先把 26 个字母写一排在纸上,容易找归率些。 第三部分:数学题时间 35 繁琐的数学,最好不用计算器(只用了两次计算器),大致估算就可,这样节约时间 可惜还是没做完。 1-17
IBM 在印度的笔试题 C 80 65 65 82 80 85 B 60 35 75 75 85 75 1.The values of shares (in Rs).of A, B and C from January to June are as follows. A Month January 30 February March April May 55 June i) During this period which share has undergone maximum fluctuation? ii) In which month it is possible to buy B and C selling A? iii) In which month the share values are very low? iv) By purchasing one share of A and 4 each of B and C in the beginning of the period, when should these be sold to get maximum profit? 45 40 75 50 2.In a computer institute 9 languages can be taught. The module is of 6 months duration and of the six languages only one can be taught each month. In addition to that BASIC is always taught and should be in first month itself • WORD PERFECT is to be taught in the preceding week of WORD STAR. • FORTRAN can not be taught until COBAL is taught prior to that • BINO, FIFO can never be taught in single module languages are BASIC, WORD STAR, WORD PERFECT, FORTRAN, COBAL, BINO, FIFO, LOTUS, C i) If word star is in 3rd month , what could be in 6th month. ii) If COBAL is in the 2nd month and BINO in 6th month. FORTRAN will be taught in which month. 3. In a class, except 18 all are above 50 years.15 are below 50 years of age. How many people are there? (a) 30 (b) 33 (c) 36 (d) none of these. 4. A square plate of some size is cut at four corners. Equal squares of the same size are cut and is formed as open box. If this open box carries 128 ml of oil. What is the size of the side of the plate? (a) 17 (b) 14 (c) 13 (d) None of these 5. In a square, all the mid points are joined. The inner square is shaded. If the area of the square is A, what is the area of the shaded area? 2-17
6. Two questions on basic angles i.e given a circle, a few chords or diameter is drawn etc. 7. A person has Rs 100/- in his pocket, he can as 25 pencils or 15 books. He kept 15% of the money for travelling expenses and purchased 5 pencils. So how many books he can purchase with the remaining money. 8. If a car starts from A towards B with some velocity. Due to some problem in the engine after travelling 30km, the car goes with 4/5 th of its actual velocity. The car reaches B 45 min later to the actual time. If the car engine fails ofter travelling 45km, the car reaches the destination B 36min late to the actual time, What is the initial velocity of car and what is the distance between A and B in km? 这是 IBM 试题第三部分(刚在水木清华 BBS 上找到的) 1.有 3 台复印机(copier),平均每台每周工作 42 小时,每台每周最少工作 35? 问一台复印 机每周最多会工作多少小时? 42*3 - 35*2 =56 2.在一个长 11 meters,宽 6 meters 的房间里,铺上 10 centimeters 厚的水泥?要多少水泥? 11*6*0.1=6.6 cubic meters 3.某公司有两座办公楼,一天,第一座楼 20%的复印机和第二座楼 40%的复印进行维护, 如果第一座楼拥有公司 60%的复印机,问这天在维护的复印机是多 20% * 60% + 40% * (1 - 60%) = 28% 4.要在一个接待室(reception room)里铺瓷砖,接待室的长 18 meters,宽 12,同时要修一条从 大厅(hall)到楼梯(stair way)的通道(不铺瓷砖)占地 50meters,允许铺设时有 35%的浪费 (wastage),1 平方米瓷砖的价格是 10 美元,问大约(approximately)要花多少钱? (18 * 12 - 50) * 135% * 10 = 2,200 5.某公司要做一个车辆更新,有 2 种车型,一种是 X(忘了,用 X 代替),一种是 van,新 X 每 liter 油走 20 公里,新 van 每 liter 油走 15 公里,旧 X 每 liter 油走 15 公里,旧 van 每 liter 油走 12 公里。现在要开 15000 公里,其中有 60%由 van 来承担,问更新后将节省多少油? (15000 * 60% / 12 + 15000 * 40% / 15) - (15000 * 60% / 15 + 15000 * 40%/ 2 0) = 250 6.有 2 个行政打字员(administrative typist),A 的速度是 B 的 1 1/4 times,现在要 打 72 页文件,问快的那个人打了多少页? 72* 5/9 = 40 7.有一个呼叫中心,星期二的 calls 比星期一的 1/2 还多 1/3,星期一和星期二的 calls 的和是 120,问星期二的 calls 是多少? 48 8.有一个软件公司,1/2 的人是系统分析员,2/5 的人是软件工程师,有 1/4 的人两者都是, 问有多少人两者都不是? 1 - 1/2 - 2/5 + 1/4= 0.35 9.有一个 crate 要做等比例(proportionally)的缩放,为了能够便于运输(shipment),crate 的尺 度(dimension)是 72,96,48,如果缩放到三个尺度的和是 200,问最长的那个尺度要缩多少? 96 * (1 - 200 / 216) = 64 / 9 = 7.1 10. 有一个矩形,长是宽的 1 1/3 times,如果把每边增加 1,面积将增加 85,问长是多少? 48 3-17
11.有一个 printer,一小时能打 12,000 页,早上 8:30 开始打印,中途被打断 2 次,每 次 5 分钟,13:15 打完,问总共打了多少页? 55,000 12 就是很著名的杀狗问题(嘿嘿) 有 50 户人,每户人都有一条狗。但是有狗生病了。 这 50 户人可以通过自己的窗户观察别人家的狗,但是看不见自己的狗是不是有 病(也就是只能通过观察别人的狗来判断自己的狗)。而且一旦发现自己的狗有病, 枪杀之。 第一天没有枪声。 第二天也没有枪声。 第三天劈劈啪啪一阵枪声。 问有多少条狗死于这次大屠杀(也就是有多少病狗了)? 13 有四个人过桥。一个要 1 分钟,一个要 2 分钟,一个要 5 分钟,还有一个要 10 分钟。 桥一次只能过两个人。因为天黑了,过桥必须要手电筒,但是只有一杆。那么如 何让这 4 个人在 17 分钟内过河? 14. 已知两个数字为 1~30 之间的数字,甲知道两数之和,乙知道两数之积,甲问乙:“你知 道是哪两个数吗?”乙说:“不知道”。乙问甲:“你知道是哪两个数吗?”甲说:“也不 知道”。于是,乙说:“那我知道了”,随后甲也说:“那我也知道了”,这两个数是什么? 有人算出是 1 和 4,或者 4 和 7 网上找到一个答案 大家看一下吧: 答案: 允许两数重复的情况下 答案为 x=1, y=4; 甲知道和 A=x+y=5, 乙知道积 B=x*y=4 不允许两数重复的情况下有两种答案 答案 1: 为 x=1, y=6; 甲知道和 A=x+y=7, 乙知道积 B=x*y=6 答案 2: 为 x=1, y=8; 甲知道和 A=x+y=9, 乙知道积 B=x*y=8 解: 设这两个数为 x,y. 甲知道两数之和 A=x+y; 乙知道两数之积 B=x*y; 该题分两种情况 允许重复,有(1 <= x <= y <= 30); 不允许重复,有(1 <= x < y <= 30); 当不允许重复, 即(1 <= x < y <= 30); 4-17
1)由题设条件:乙不知道答案 <=> B=x*y 解不唯一 => B=x*y 为非质数 又∵ x ≠ y ∴ B ≠ k*k (其中 k∈N) 结论(推论 1): B=x*y 非质数且 B ≠ k*k (其中 k∈N) 即:B ∈(6,8,10,12,14,15,18,20...) 证明过程略 2)由题设条件:甲不知道答案 <=> A=x+y 解不唯一 => A >= 5; 分两种情况 A=5,A=6 时 x,y 有双解 A>=7 时 x,y 有三重及三重以上解 假设 A=x+y=5 则有双解 x1=1,y1=4; x2=2,y2=3 代入公式 B=x*y: B1=x1*y1=1*4=4; (不满足推论 1,舍去) B2=x2*y2=2*3=6; 得到唯一解 x=2,y=3 即甲知道答案 与题设条件:“甲不知道答案”相矛盾 故假设不成立, A=x+y≠5 假设 A=x+y=6 则有双解 x1=1,y1=5; x2=2,y2=4 代入公式 B=x*y: B1=x1*y1=1*5=5; (不满足推论 1,舍去) B2=x2*y2=2*4=8; 得到唯一解 x=2,y=4 即甲知道答案 与题设条件:“甲不知道答案”相矛盾 故假设不成立, A=x+y≠6 5-17
当 A>=7 时 ∵ x,y 的解至少存在两种满足推论 1 的解 B1=x1*y1=2*(A-2) B2=x2*y2=3*(A-3) ∴ 符合条件 结论(推论 2):A >= 7 3)由题设条件:乙说“那我知道了” => 乙通过已知条件 B=x*y 及推论(1)(2)可以得出唯一解 即: A=x+y,A >= 7 B=x*y,B ∈(6,8,10,12,14,15,16,18,20...) 1 <= x < y <= 30 x,y 存在唯一解 当 B=6 时:有两组解 x1=1, y1=6 x2=2, y2=3 (∵ x2+y2=2+3=5 < 7∴不合题意,舍去) 得到唯一解 x=1, y=6 当 B=8 时:有两组解 x1=1, y1=8 x2=2, y2=4 (∵ x2+y2=2+4=6 < 7∴不合题意,舍去) 得到唯一解 x=1, y=8 当 B>8 时:容易证明均为多重解 结论: 当 B=6 时有唯一解 x=1, y=6 当 B=8 时有唯一解 x=1, y=8 4)由题设条件:甲说“那我也知道了” => 甲通过已知条件 A=x+y 及推论(3)可以得出唯一解 综上所述,原题所求有两组解: x1=1, y1=6 x2=1, y2=8 当 x<=y 时,有(1 <= x <= y <= 30); 同理可得唯一解 x=1, y=4 Aptitude Paper : IBM 6-17
1. In 1978, a kg of paper was sold at Rs25/-. If the paper rate increases at 1.5% more than the inflation rate which is 6.5% a year, then what wil be the cost of a kg of paper after 2 years? (a) 29.12 (b) 29.72 ? 30.12 (d) 32.65 (e) none of these 2. In A,B,C are having some marbles with each of them. A has given B and C the same number of marbles each of them already have. Then, B gave C and A the same number of marbles they already have. Then C gave A and B the same number of marbles they already have. At the end A,B,and C have equal number of marbles. (i) If x,y,z are the marbles initially with A,B,C respectively. Then the number of marbles B have at the end (a) 2(x-y-z) (b) 4(x-y-z) ? 2(3y-x-z) (d) x + y-z Ans. ? (ii) If the total number of marbles are 72, then the number of marbles with A at the starting (a) 20 (b) 30 ? 32 (d) 39 Ans. (d) 3. If a car starts from A towards B with some velocity. Due to some problem in the engine after travelling 30km, the car goes with 4/5 th of its actual velocity The car reaches B 45 min later to the actual time. If the car engine fails ofter travelling 45km, the car reaches the destination B 36min late to the actual time What is the initial velocity of car and what is the distance between A and B in km? Ans. 20 & 130. 25 & 105 4. A person has Rs 100/- in his pocket, he can as 25 pencils or 15 books. He kept 15% of the money for travelling expenses and purchased 5 pencils. So how many books he can purchase with the remaining money. 5. Ten questions on analogies. eg: chief : tribe :: governer : state epaulette : shoulder :: tiara : head 7-17
guttural : throat :: gastric : stomach inept : clever :: languid : active knife : butcher :: hammer : carpenter :: 7. In a computer institute 9 languages can be taught. The module is of 6 months duration and of the six languages only one can be taught each month . In addition to that BASIC is always taught and should be in first month itself WORD PERFECT is to be taught in the preceeding week of WORD STAR. FORTRAN can not be taught until COBAL is taught prior to that BINO, FIFO can never be taught in single module languages are BASIC, WORD STAR, WORD PERFECT, FORTRAN, COBAL, BINO, FIFO, LOTUS, C i) If word star is in 3rd month , what could be in 6th month. ii) If COBAL is in the 2nd month and BINO in 6th month. FORTRAN will betaught in which month. 8. In a class, except 18 all are above 50 years. 15 are below 50 years of age. How many people are there (a) 30 (b) 33 ? 36 (d) none of these. Ans. (d) 9. A square plate of some size is cut at four corners. Equal squares of the same size are cut and is formed as open box. If this open box carries 128 ml of oil. What is the size of the side of the plate? (a) 17 (b) 14 ? 13 (d) None of these 10. In a square, all the mid points are joined. The inner square is shaded. If the area of the square is A, what is the area of the shaded area? 11. Two questions on basic angles i.e given a circle, a few chords or diameter is drawn etc. 12. If the follwoing statements are given @(a,b)= (a+b)/2 /(a,b)= a/b *(a,b)= ab If a=1, b=2 then find i) /(a,(@(a,b),*(a,b))) 8-17
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