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GMAT考試數(shù)學復習的練習題

時間:2022-07-02 04:11:17 考試

GMAT考試數(shù)學復習的練習題

  題海戰(zhàn)術是GMAT考試考生們經(jīng)常用的方法,比較常見的就是在GMAT數(shù)學這一塊了。有時候題海戰(zhàn)術確實是非常好的選擇,但是那也要看考生選擇的練習題的質(zhì)量了。關于數(shù)學復習的練習題大家是怎么看的呢?小編分享一些不錯的練習題給GMAT入門的考生,希望對大家有所幫助:

GMAT考試數(shù)學復習的練習題

  1、There are 1200 respondents to a poll, each favoring their preference for candidates A, B, and C. 54% favored A, 48% favored B, and 42% favored C, and there is 30% favored both A and B. Whats the largest possible number of respondents favoring C, but not C B, nor C A.

  【答案】12000.28=336

  【思路】題目問只選C的最大可能數(shù)是多少,要使這個數(shù)最大,就要滿足所有選C的人,都不會同時選A或者B。即P=1-P=1-=1-=0.28。

  2、A plane flied a distance of 800 miles at 360m/h with wind speed. And flied back at 260m/h with wind against it. Whats the average speed of the round-trip?

  【答案】約等于302m/h

  【思路】將題目理解為單程800m,round-trip 1600m,兩個時速中已計入風速的影響,不另行計算。則第一段距離800m,時速360m/h,用時20/9h;第二段距離800m,時速260m/h,用時40/13h。則全程的平均時速=1600/=9360/31,約等于302m/h。

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