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GMAT考試數(shù)學(xué)復(fù)習(xí)的練習(xí)題
題海戰(zhàn)術(shù)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(xué)這一塊了。有時(shí)候題海戰(zhàn)術(shù)確實(shí)是非常好的選擇,但是那也要看考生選擇的練習(xí)題的質(zhì)量了。關(guān)于數(shù)學(xué)復(fù)習(xí)的練習(xí)題大家是怎么看的呢?小編分享一些不錯(cuò)的練習(xí)題給GMAT入門的考生,希望對(duì)大家有所幫助:
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(gè)數(shù)最大,就要滿足所有選C的人,都不會(huì)同時(shí)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(gè)時(shí)速中已計(jì)入風(fēng)速的影響,不另行計(jì)算。則第一段距離800m,時(shí)速360m/h,用時(shí)20/9h;第二段距離800m,時(shí)速260m/h,用時(shí)40/13h。則全程的平均時(shí)速=1600/=9360/31,約等于302m/h。
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