GMAT考试数学辅导04年1月数学总结(二)
<p> 37.买第1-5本书8元/本，买第6--10本7元/本，买10本以后6元/本， 摩人买两次，第一次共花32元，第二次化61元，问如果他一次就买所有的书，花多少钱?</p><p> 38.<span word="in">in</span> <span word="a">a</span> <span word="group">group</span>, 50%<span word="male">male</span> <span word="and">and</span> 40%<span word="female">female</span> <span word="older">older</span> <span word="than">than</span> 35岁， 42%的人<span word="in">in</span> <span word="this">this</span> <span word="group">group</span> <span word="older">older</span> <span word="than">than</span> 35, 问<span word="female">female</span> 占总人数的 <span word="percentage">percentage</span>.</p><p> 39.-=?</p><p> 40.^<span word="n">n</span> , 问千位数=0? 1.:<span word="n">n</span>6 2.:<span word="n">n</span>3</p><p> 41.和12月<span word="jj">jj</span>85题相似，我以为所有数加或减同一数 <span word="sd">sd</span>不变。</p><p> 42.圆里有两条平行等长的旋，长2根号2，两旋之间距离2根号2， 问两旋围城的面积。</p><p> 43.1到24的连续乘积，10得<span word="n">n</span>次方是他的因子，<span word="n">n</span>可能的最大值是多少。</p><p> 44.红黑两种书在架上, 红<span word="X">X</span>本, 黑<span word="Y">Y</span>本, 抽两本书, 没有红的可能性?</p><p> <span word="A">A</span>: <span word="X">X</span>:<span word="Y">Y</span>=1:2</p><p> <span word="B">B</span>: 共多少本</p><p> <span word="Answer">Answer</span> <span word="is">is</span> <span word="C">C</span>.</p><p> 45.<span word="A">A</span> 单独做 <span word="X">X</span> 比 <span word="B">B</span> 多 2 <span word="Hours">Hours</span>, <span word="A">A</span>, <span word="B">B</span> <span word="together">together</span>, <span word="can">can</span> <span word="finish">finish</span> 4/5 <span word="X">X</span> <span word="in">in</span> <span word="Y">Y</span> <span word="hours">hours</span>, <span word="A">A</span> 单独做 2<span word="X">X</span>, <span word="how">how</span> <span word="long">long</span>?</p><p> 46.问<span word="y">y</span>=<span word="ax">ax</span>+<span word="b">b</span>的斜率是否大于2?</p><p> <span word="a">a</span>3</p><p> <span word="b">b</span>5</p><p> 我选<span word="A">A</span></p><p> 47.几何题：一个园，被两条平行线分割，两条线距离是2根号2，它们被园所截的长也是2根号2，求它们截园的那个阴影面积。</p><p> 答案：4+2<span word="pai">pai</span></p><p> 48.81的<span word="x">x</span>次方=1/27的<span word="y">y</span>次方，问<span word="y">y</span>,<span word="x">x</span>的表达式</p>
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