GMAT考试1-GMAT数学12月总结(九)
<p> 184. <span word="X">X</span>,<span word="Y">Y</span>两忙挣钱，问 <span word="In">In</span> <span word="June">June</span>，<span word="the">the</span> <span word="rate">rate</span> <span word="X">X</span> 挣的钱 <span word="to">to</span> <span word="Y">Y</span>挣的钱?</p><p> <span word="A">A</span>) <span word="X">X</span> <span word="In">In</span> <span word="June">June</span>挣的钱比<span word="Y">Y</span> <span word="In">In</span> <span word="May">May</span>挣的钱多50%</p><p> <span word="B">B</span>) <span word="Y">Y</span> <span word="In">In</span> <span word="June">June</span>挣的钱比<span word="In">In</span> <span word="May">May</span>挣的钱增长了25%</p><p> 185. <span word="a">a</span> <span word="square">square</span> 面积为16，<span word="T">T</span>为<span word="square">square</span> 内一点，与底边形成三角形，<span word="TA">TA</span> 为高，<span word="A">A</span> 为底边上一点，问<span word="TA">TA</span>长?</p><p> <span word="A">A</span>) 三角形面积为<span word="square">square</span> 的 1/3</p><p> <span word="B">B</span>) 三角形面积与<span word="square">square</span>内剩余面积之比为 1/2</p><p> 187. <span word="x">x</span>,<span word="y">y</span>,<span word="z">z</span> 为<span word="consecutive">consecutive</span> <span word="integers">integers</span>, 且<span word="x">x</span> <span word="z">z</span>，问<span word="z">z</span>^2 - <span word="x">x</span>^2 -<span word="y">y</span>^2 不可能为的值</p><p> -12</p><p> -6</p><p> 0</p><p> 3</p><p> 4</p><p> 188. <span word="given">given</span> <span word="the">the</span> <span word="formula">formula</span>,<span word="ask">ask</span> 從50加到100的和?</p><p> 189. <span word="lottery">lottery</span> $16 <span word="billion">billion</span>, <span word="separate">separate</span> <span word="as">as</span> <span word="gifts">gifts</span>, <span word="government">government</span> <span word="payment">payment</span>, <span word="and">and</span> <span word="expense">expense</span>, <span word="give">give</span> <span word="the">the</span> <span word="relation">relation</span> <span word="of">of</span> <span word="payment">payment</span> <span word="and">and</span> <span word="gift">gift</span><span word="the">the</span> <span word="relation">relation</span> <span word="of">of</span> <span word="payment">payment</span> <span word="and">and</span> <span word="presentation">presentation</span>, <span word="ask">ask</span> <span word="the">the</span> <span word="payment">payment</span> <span word="in">in</span> $ <span word="amount">amount</span></p><p> 190 . <span word="r">r</span>1, <span word="r">r</span> = 1- <span word="whats">whats</span> <span word="the">the</span> <span word="value">value</span> <span word="of">of</span> : <span word="r">r</span> - = 1/<span word="r">r</span></p><p> 191. 一个三角形<span word="x">x</span>,<span word="y">y</span>,<span word="z">z</span>，分别为三个外角，确定<span word="x">x</span>的度数?</p><p> <span word="A">A</span>. <span word="x">x</span>=<span word="y">y</span></p><p> <span word="B">B</span>. <span word="x">x</span>=<span word="z">z</span> <span word="Susans">Susans</span> <span word="answer">answer</span> <span word="is">is</span> <span word="C">C</span></p><p> 192. 99到301间的偶数的和</p><p> 答案：20200</p><p> 方法：99到301间的偶数的和=100到300间的偶数的和，等差数列求和=<span word="N">N</span>/2= 101/2=20200</p><p> 193.<span word="DS">DS</span>: 两个数列<span word="S">S</span>,<span word="T">T</span>，<span word="S">S</span> 由偶数组成，<span word="T">T</span>由奇数组成，两个数列个数相同，问<span word="S">S</span>的<span word="MEDIAN">MEDIAN</span> 和<span word="T">T</span>的算術平均值谁大?</p>
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