58.给出一个柱形图,横坐标是六至十二月的平均每日用电量。 纵坐标是千瓦。 每月头600度电每度$0。14,超过的每度$0。11。 求八月的cost.
59.给出一个柱形图,横坐标是working hours,纵坐标是人数。 求working hours 的median.
60.DS, 不放回抽样,共有English and Spanish 良种,抽两本,问抽得at least one english book的概率。
1)english 与spanish 的比是1:3
2)书的总数少于20本
61.scientist studies the migration trend of a group of geese. The group contains 30% male geese. Among the geese that later on migrated, 20% are male. What is the ratio of migration factor for male geese to the migration facotr for female geese?
Solution: Assume total geese X, of which Y migrated.
The answer is simple / = ...
62.Some guy has 6 albums of anthology from which he read one poem at least. All peoms in the albums are different. Did he read more than 6 poems from at least one of the album?
a) he has read 22 poems in total.
b) the numbers of poems he read from each album are all distinct.
Anwser: C
63. k, l, m are positive integers, does k has more prime factors than m
a) k = 30l
b) m = 10^k
Answer: C
【GMAT考试数学辅导04年1月数学总结(三)】相关文章:
最新
2016-03-02
2016-03-02
2016-03-02
2016-03-02
2016-03-02
2016-03-02