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[转帖]3月16号,新加坡,一点儿JJ

只考了个640,Q51,V24。郁闷!V24,36 Percentile,难道自己的英语这么差?!太惨了。。做题的时候没有感觉,尤其是CR,没看出line of reasoning来,还没平时做题有感觉。。唉。。。

前天做GMATPrep practice 1,得分620,深受打击;昨天做GMATPrep pactice 2,得分720,信心又恢复了点儿。今天就被给结结实实地打回原形了。。

不好意思,唠叨了。

Math:

碰到了很多JJ题。

2)球形r,一个球形切成平行的三部分,上下两个dome一样大小,然后中间一块,问球形的半径r1)是截面面积是16,(2)是这几部分的高是多少多少多少

10)矩形ABDE和矩形CDEF相似,对应边成比例,(图中BC=DE=X, CD=1)问下面那个方程是可以用来求x 的?

11问下列条件能否求出整数n

(1 n/73

(2 n/42

12)投资多少钱到semiannual compound interest rate 2% 一年后的 balance 等于10000投资quarterly compound interest rate 4% 后一年的balance。

14)(好象只碰到这么一道集合题)100,27人用swimming pool,48人 tennis court,35人什么都不用,问多少人两个都用。

19)还有说7^m+1是除以5余数0

1)m4a+2

2)m是3b+1 (可能是这样吧)(同意原JJ作者,反正是个不行的)

23). Distribute crayons to children, how many crayons totally ?

(I) evenly distribute to 7 children and left 4 crayons

(II) evenly distribute to 4 children and left 2 crayons

25). (3月经典题吧)一家公司的員工, when his age & 服務年資的 sum = 70 就可以退休, 當一員工進入公司的age 為 x 時, which following equation can represent 退休之 condition ?

(A) x + y = 70

(B) x + 2y = 70

(C) 2x + y = 70

(D) ??

(E) ??

50)某人有15coins5分的,和10分的,他总共有多少钱?

110分的是5分的4倍 (不是说10分的比5分的多4倍)

210分的比5分的多9

51500以内的正整数有多少个可以被7除余1且被3除余2

54 x value 为何时, (997 * 103)/x to nearest thousand.
A. the tens digit of x is 8

B. 80 <= x < 90

61)四边形ABCD C=90 和角C对頂的角A=60 另外一对角BD相等,两条直角边都等于2 问四边形面积是多少。

42. 以下哪个数可以不能用有穷小数表示(terminated decimal ?),答案分别是2,3,5各次方互相除,我选分母中有3的选项,因为只要分母中有3或3的几次方,肯定是无限循环小数,而2和5都可以有限除尽
虽然没有给出答案,但思路是正确的。

66)超简单的正六边形中的一个正三角形,(其实就是六边形均分成6个等边三角形,)再把该三角形位于正六边形中心的顶点箱底边做垂线,那个顶角就变成30度了,答案就是30度。

67 矩形的周长28 可否求面积?

1 两对角距离给出

2 一条边长给出 不大确定了SORRY

74 xy<1?

1) x+y>1

2) x^2+y^2=1

想到8个好象没人发过的:

1. x, y, z are numbers on the number line. Is x < y < z ?

a) |y-x| + |y-z| = |z-x|

b) x<z

2. 10 apples, 2 of them weighs 4 ounces each, 3 of them weighs 5 ounces each, and 5 of them wights 6 ounces each, what is the median of the weights of the 10 apples in ounces?

3. the 1st item is 1, the 2nd is 2, from the 3rd item onwards, the item is the obtained by subtracting the item before the item before it from the item before it (我实在想不起来原题是怎么写的了。但就是这个意思。). for instance, the 3rd item is 2-1=1. How many possible values are there for the sum of the first n items?

4. A set {1,2,3,4,5,6}. select 2 numbers from the set, is the sum of the 2 numbers divisible by 4?

a) the larger number selected is 3 times the smaller one

b) both selected numbers are odd numbers

5. telecom charges $0.02 (may not be this value) for each minute of phone call made for the first 300 minutes, and $0.05 for each minute of phone calls exceeding the first 300 minutes. How many minutes of phone call is Henry (just a name) charged for his last month phone bill?

a) last month, henry is charged 300 minutes (or $6, can't remember if it is the minutes that is given or the dollars ) for the rate of $0.02 per minute.

b) last month, henry is charged 100 minutes (or $5) for the rate of $0.05 per minute.

6. n is positive integer. 9^n = 10,000 * x. What is the value of x?

a) (sorry, can't remember)

b) 1/10 < x < 1

7. 碰到两个worker题。一个是这样的:machine A can produce x products in 1 hour, machine B can produce x products in 3 hours. If machine A and B work together to produce x products, what is the ratio of the products that the faster machine produce? (选项里给的是分数)

8. 又想到一个条件概率题:a company has 255 employees. If one employee is randomly selected, is the probability that the employee is a woman and has a college degree less than 1/2?

a) 135 employees do not (原题就在not下划了道线) have colleage degree

b) 125 employees are man

(题目里一个选项是数字135,一个是125。记不清记对位置了没有。)

AWA:

AA:

52. The following editorial appeared in the Elm City paper.
“The construction last year of a shopping mall in downtown Oak City was a mistake. Since the mall has opened, a number of local businesses have closed, and the downtown area suffers from an acute parking shortage, and arrests for crime and vagrancy have increased in the nearby Oak City Park. Elm City should pay attention to the example of the Oak City mall and deny the application to build a shopping mall in Elm City.”

AI:

34. “All citizens should be required to perform a specified amount of public service. Such service would benefit not only the country as a whole but also the individual participants.”

Verbal 做得没有感觉,估计能错一半。就不说了。。(但觉得4个RC还都读懂了的。。sigh....)

学理科的对GMAT的数学可能没在太大的问题。Verbal要着重复习。我考完了才发现自己对Verbal掌握得太不好了,尤其是CR和RC。同时,pace,很重要。想了一段时间之后还想不出的题,一定要下决心跳过去(当然是选一个答案再跳过去)。因为既然已经想了这么长时间都不能确定答案,很可能再给你再多的时间你也想不出正确答案。不跳过去的话,你占用了时间,做后面的题的时间就短了。这是非常非常非常不划算的。我犯下了这个很大的错误,最后3道题都没能仔细看,还都是长题,越急呢越看不懂选项是什么意思,分就白白地丢了。朋友们,请不要犯我这样的错误。。

谢谢!


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