GMAT数学概率题是最容易掌握的一类GMAT数学题型,解决这类题,用两种主要的方法就可以解决,就是加法原则和乘法原则:问自己这个事儿完成了没有?如果完成了就是加法原则,没有完成就是乘法原则。
例子一:从北京到上海可以乘飞机,轮船,或者火车,问从北京到上海乘这3种交通工具共几种方案?答:既然任何一个方案都已经到达了上海,这件事儿已经完成了,所以用加法原则:3+2+5=10种
例子二:从北京到上海有2条路线,从上海到深圳有5条路线,问从北京出发经由上海到深圳会有多少种路线?答:当你到达上海时还没有到达深圳呢,没有完成,那就乘起来,用乘法原则:25=10
还是那句话,平常多练才能达到解GMAT数学概率题炉火纯青的地步。
上一篇: GMAT数学必备词汇之代数词汇表
下一篇: 费费数学宝典(连载七)
国内英语资讯:Chinese submersible Jiaolong completes fourth dive in South China Sea
国际英语资讯:Thousands of Americans join May Day protests across U.S. cities for workers, immigrantsrig
国内英语资讯:1st LD-Writethru: SOEs have potential in mass entrepreneurship, innovation: premier
国内英语资讯:China-made large amphibious aircraft finishes 1st glide test
国际英语资讯:Five killed, dozens injured by tornadoes in U.S. state of Texas
国内英语资讯:Xinjiang reports robust foreign trade growth in Q1
体坛英语资讯:Iran to play friendly with Montenegro
体坛英语资讯:Selby beats Higgins to win third world snooker title
国际英语资讯:High winds knock out power to thousands of homes in south California
体坛英语资讯:Chinas Ding edged out by defending champion Selby at snooker worlds semifinals
国际英语资讯:2 slightly injured in train derailment in Dortmund, Germany
国际英语资讯:Over 200 rebels killed during infighting east of Damascus
体坛英语资讯:Flamengo seek to secure Copa Libertadores knockout spot
国内英语资讯:Feature: Polish dairy farmer turns east as China pushes Belt and Road Initiative
外国人最喜爱的中国元素
国内英语资讯:China, Cambodia pledge to cooperate under Belt and Road Initiative
国内英语资讯:Philippines open to joint war drills with China: Duterte
国内英语资讯:China Focus: CPC creates four-tier system to measure political discipline
这些水果的“内涵”,你都知道吗?(一)
体坛英语资讯:Chinas Ding levels at 12-12 with Selby at snooker worlds semifinals
体坛英语资讯:Schalke upset Leverkusen 4-1 in German Bundesliga
国内英语资讯:Italy, China hold forum on poverty reduction with partners
体坛英语资讯:Ecuador forward Bolanos sidelined with injury
国内英语资讯:Chinese FM calls for non-proliferation efforts, peace talks on Korean Peninsula
国际英语资讯:EU to discuss crucial issues in complex Brexit talks
世界最美的国家是哪?
国内英语资讯:Chinese naval fleet starts friendly visit to Philippines
最新约会词典:单身汪必知的十大词汇
国内英语资讯:Ministry of Public Security stresses traffic safety during holiday
《沉默的羔羊》导演乔纳森 戴米去世