Re: [計量] CAT計量問題請教
※ 引述《think12381 ()》之銘言:
: 沒人可以問 只能請教各位板友 這些題目怎麼算
: 不好意思題目還蠻多的
囧 下次打字加個標點符號跟圖啦.....
GRE的Q本來就是考英文理解力啊...不加符號會亂翻
: CAT 14
: 25.
: Pat plans to visit the national gallery oncee each month in 2007
: except in july and august when he plans to go three times each a single
: admission costs $3.5 a pass valid for unlimited visits in any
: 3-month period can be purchased for $18 and annual pass costs $60
: what is the least amount in dollars that pat can spend for his intended number
: of visits
: ans 49.5
預計2007年每月去一次,但七月八月要各去3次,因此總共去16次
有三種方法: 1.每次3.5元 2.每3個月18元 3.一年60元 問哪種最便宜
1~6月,買單次,共21元,7~9,買3月,18元,9~12月,買單次,共10.5元,加總49.5元
: CAT 15
: 1.
: The figure above shows part of a circle whose
: circumference is 45 if arcs of length 2 and length b
: continute to alternatee around the entire circle so that
: there are 18 arcs of each length, what is the degree
: measure of each of the arcs of length b
: ans 4'
這題要圖吧= =a
我猜是有一小段圓周是2+b,他的18倍是整個圓,整個圓是45
所以b=0.5,又45是360度,所以0.5就是4度
: 6.
: if the product consecutive integers is equal to one of them
: what is the largest possible value of one of the integers
: ans 5
這題是不是有漏字啊= =?
: 14.
: an interger is "conjoint" is a muliple of 2 or 3
: how many conjoint integers are there between -11 and 11
: ans 15 順便問題意
話說沒有muliple這個字說= =....
2或3是他的一部份,包括2,4,6,8,10,3,9,-2,-4,-6,-8,-10,-3,-9,0
: 18.
: eason some goldfish at the state fair during the first
: week 1/5 of them died and during the second week 3/8 of
: those still alive at the end of the first week died what
: fraction of the original goldfish were still alive after
: two weeks
: ans 1/2
假設原本有10隻,先死1/5,剩下8隻
又死3/8,剩5隻,所以是1/2
: CAT16
: 13.
: x and y are distinct positive decimals. if sum of x and y
: were rounded to the hundredth the result would be equal to x
: y 0.007
: ans B
x與7相加後,假如在百分位4捨5入,會跟x一樣,因此可以知道y至少小於0.05
所以是B
: 28.
: the slope of line m that through O and intersects AB 3/8
: between A and B
: ans B
這題是不是有漏字或漏圖啊
: CAT 17
: 25.
: of ten researchs attending a round-table meeting, two are husband and wife
: what is the probability that the couple will sit adjacently
: ans 2/9
10個人坐圓桌,排列方法有9!
一對夫妻相臨,排列方法有8!x2,因此機率是2/9
: 27.
: there are 27 students on the school debate team.
: what is the probablity that at least 3 of them have
: their birthdays in the same month
: ans 1
同籠問題,因為有27人,就算全部平均在每個月,12個月分2次後還多3人
因此一定會有一個月有超過3個人同生日
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◆ From: 140.112.5.19
※ 編輯: wearytolove 來自: 140.112.5.19 (08/05 21:54)
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