下面GMAT思为大家整理了GMAT数学备考资料:练习+讲解(10),供考生们参考,以下是详细内容。
11、S=,T=。One number is selected from S, and the other number is selected from T. What is the probability that the product of the two numbers is negative?
【答案】1/2
【思路】C5 1C3 1 / C5 1C6 1=1/2
What is the function of the curve above?
y = x^3 - x^2
y = - x^3 + x^2
y = - x^3 +x
y = x^3 - x
y = x^3 + x
【答案】
【思路】根据图形可以知道应该找与X轴有三个交点,也就是y等于0时可以解出三个实根的方程。排除、、,因为只有两个实根,也是有两个实根,只有一个实根,只有是对的。又可以通过增减函数来排除,图形告诉我们X向正无穷方向增加,Y的值也随之增加,从某点开始为增函数,再看方程明显从某点开始后为减函数,因此是对的。
13、0-50中,被3整除余1的数有多少个?
【答案】有17个
【思路】0=3x+1=50 x=0.16
14、N is the sum of the first K consecutive positive integers, where 101=150. What is the sum of 1/N?
【答案】2
【思路】把first consecutive 理解为是从1开始到k 的数列。
N=K/2
1/N=2/K=2 1/K
因为1/K=1/K 1/
所以 2/K=2 =2
15. There are six cards each with a number from 1 to 6. Draw one card randomly and then put it back into a bowl. If one card is to be drawn randomly, and the sum of two cards is 8, whats the probability that the card is 5?
【答案】2/5
【思路】因放回,两张cards之和=8有5种可能,2 6,6 2,3 5,5 3,4 4,其中出现5的可能有2种。
以上就是GMAT数学备考资料:练习+讲解(10)的详细内容,考生可针对文中介绍的方法进行有针对性的备考。最后,GMAT预祝大家在GMAT考试中取得好成绩!
全球12大智能手机生产商排名出炉 中国企业占9席
赛琳娜谴责川普边境政策!网友惊呼太棒了
国内英语资讯:China, Norway pledge to maintain rule-based global free trade system
国内英语资讯:China reports 18,400 voluntary organ donors by July
体坛英语资讯:Khazri strike ends Tunisias 40-year World Cup victory drought
体坛英语资讯:Frankfurts Mascarell moves to Schalke
国内英语资讯:China, Hungary vow to lift ties to higher levels
体坛英语资讯:China lose to Brazil 3-0 in VNL finals
国内英语资讯:China hopes ministerial meeting to send clear signal of maintaining Iran nuclear deal
国内英语资讯:China, Uzbekistan to deepen law enforcement, security cooperation
科学家正研发可检测血糖的隐形眼镜
《小妇人》重拍!这演员阵容能得15个奥斯卡!
国内英语资讯:Chinese, U.S. officials agree to boost cooperation
体坛英语资讯:Against England, Belgium remain unbeaten to play Japan in last 16
体坛英语资讯:Zhu Ting leads China to first win in Volleyball Nations League finals
国内英语资讯:China refutes U.S. criticism on unfair trade
国内英语资讯:Chinese president eyes closer China-EU partnership
国内英语资讯:Xi calls for concerted efforts on rural vitalization
Will E-books Replace Traditional Books? 传统书籍是否会被电子书替代?
体坛英语资讯:Japanese figure skating star Hanyu receives Peoples Honor Award
什么样的睡姿能缓解经期疼痛?
国内英语资讯:China ready to strengthen infrastructure cooperation with Croatia: premier
列车晚点,铁路公司还免费派发冰棍,太亲民了!
体坛英语资讯:Brazil deserve to be among World Cup favorites, says Serbia coach
报告显示 海归渐青睐新一线城市
申请英国大学,这样写个人陈述最加分
全球云计算排行榜出炉 阿里巴巴超IBM位居第四
国内英语资讯:China Focus: PLA opens warships for public visits
国内英语资讯:Chinas top political advisor meets Russian Federation Council speaker
国内英语资讯:Chinese state councilor meets with Canadian, Indonesian FMs
| 不限 |
| 英语教案 |
| 英语课件 |
| 英语试题 |
| 不限 |
| 不限 |
| 上册 |
| 下册 |
| 不限 |