7.6 JJ

hsWang

Very sad:　5x/2x total 6xx. even less than my first test. AI: 138 Restricting people to access national parks and historical sites to protect them. AA: 95 Apex bought its managers computers and paid telephone connection, so they can access company file and data at home, next year productivity at Apex increased 15%. Other companies should lean from this. Math: Math seems more difficult than before, more questions are tricky, 题干长不易懂 (To better serve the Math JJ, I gave each question a difficulty index from 1 to 5, easy to difficult. So you do not have to read each question if you are only interested in some tricky questions not those easy ones. This index is based on personal opinion) 1. (DI2) Is 四边形ABCD a square. (DI2 : difficult indix 2) 1) AB=BC=CD=DA 2) angle abc+angle bcd=180 Ans: E 2. (DI2) ask product A price. 1) Three A and five B cost $12.25 2) Nine A and fifteen B cost $36.75 Ans: E 3. (DI5) deposit $1000 in an account, annual rate x percent (compound quarterly) , no other activity for this account, ask is account balance over $1050 after one year. 1) (1+x/200)^2 > 1.05 2) (1+x/400)^2 >1.025 Ans: B 4. (DI5) A club has members more than 10 and less than 40. They normally sit in two ways. First, one table with 3, and other tables with 4. Second, one table with 3, other tables with 5. But today the site in another way, all table with 6 persons except one table. Ask today how many persons sit beside that table. A) 1 B) 2 C) 3 D) 4 E) 5 Ans: 5 (Totol 23 members, the decription is longer than mine and it costs me over 5 minutes to understand it. Regret for my reading ability) 5. (DI5) Five racers in a competition, not tie, ask how many possibilities A is ahead of B. A) 24 B) 30 C) 60 D) 90 E) 120 Ans: C 6. (DI2) 100 persons in a survey, 60 persons answered at least one \\"No\\" to the questions. 50 persons answered at least two \\"No\\"s to the questions. Ask the proportion of person who answered only one \\"No\\" Ans: 10% 7. (DI3) In a blacket there are four kind of fruit. Pear 7, Peach 9, orange and apple have the same number. Ask the number of apple. 1) From blacket pick one, the posibility of apple is 1/6 2) ??? Forgot ...... (But it can get the number of apple) Ans: D 8. (DI3) The proportion of students study arts is 40%, medician is 46%. Ask proportion of students study medician only. 1) In the students study arts, also 30% of them also study medician 2) 26% study none of them Ans: D 9. (DI4) Two right cylinders A and B. B's radius is x and high y, A's radius is twice as B and height is half of B's. Ask surface area difference. Ans: 6x^2*PI 10. (DI3) A right triangle with one side length 10 inches. Ask with one of following could be sides of the other two sides in inches. I) 6, 8 II) 15/2, 25/2 III) 40/3, 50/3 A) I B) II C) I, II D) I, II E) I, II, III Ans: E 11. (DI1) A pipe, fill X gallon water per hour, fullfill a pool in 9 hours. how many hours would be, if the pipe fill the pool with a speed of (X+5) gallon per hour. Ans: 9x/(x+5) 12. (DI3) denote the product from 1 to K as (*k*), if (*24*)/10^n is an integer. (K and N are integers). Ask maxium of n. Ans: 4 13. (DI1) (2-1/2)/(2+1/2)=? (My first one) Ans: 3/5 14. (DI1) if 81^y=1/27^x, then x in term of y? Ans: x=-4y/3 15. (DI2) 1/(81-4*sqr(5))=? 注：sqr(5)=5^(1/2) Ans: 81+4*sqr(5) 16. (DI3) consequent 7 integer, ask for mean 1) the sum of maxium two is 9 2) the sum of minium two is -1 Ans: D 17. (DI4) Line L pass point (a, b) and (c,d), ask if slope <0 1) (a-c)*(b-d)<0 2) Line L product of 两轴截距 >0 Ans: D 18. (DI2) In a theater first row has 16 seats, next row has two more seats than the front row, last row has 64 seats. ask how many seats total. Ans: 1000 19. (DI4) A, B and A+B are prime integers 1 A) B is even B) A is odd C) A+B is even D) A>5 E) ?? forgot Ans: D 20. (DI3) Three same size pipe fill a pool, ask the time of using all three is how many hours less than using two. 1) ?? forgot (maybe the time difference of using two and one.) 2) need 6 hours to fill if only one is in use Ans: D 21. (DI2) point A and B in a number line (middle is zero), ask A-B>0? 1) A is at right of B 2) A and B are on the opposite side of zero. Ans: A 22. (DI3) A number line point (A diagram on screen) r, s, t, u, v, and w which are locate at 0.4, 0.5, 1.2, 1.5, 2.2 and 2.5. if point p is between r and s, point q is between t and u, ask q/p could be in which area. Ans: Between v and w. (Which is the choice E) 23. (DI2) Febuary sales is 20% increase than January, March saless is 14% decrease than Feb. If March sales is 1.2M, what is the Jan sales in million. Ans: 1.16 (Which the choice is C) 24. (DI2) A product gross profit is 150% of its cost. if its sale price is 65. ask for cost. Ans: 26 25. (DI4) A sales manager's salary has two parts of commission, 20% of his sales amount and 10% of sales ammount of employee he supervisored. ask in January that manager's commission of the sales of his own. 1) Febuary the sales amount of his own and the employees under him increased 20% and 30%. 2) Febuary the sales amount if his own and the employees under him were N1 and N2 (forgot numbers) Ans: C (I chose B first, it is very long) CR: 1. A director of a movie of this year was assert to copy the other movie which is released last year. Because these two movies are blabla the same. ask weaken. My ans: the scripts of several movies that director used include the movie above is finished before last year. 2. A survey of TV programs show that more people interest in science than in arts. So the TV's attempt to open a new art channel is wrong. ask weaken. My ans: Science program using a program blablabla(means more interesting), and arts program only uses the old material. RC: 一种虫虫的进化。两种理论，气候变化(ice age)和环境变化(howaii) Ask: 异同，例子作用，作者态度 管理应该用奖励或惩罚的那篇。奖励的好处和惩罚的缺点 I will post later, if I recall more. Good luck everybody