Re: [計量] 數學又來了

看板GRE (GRE入學考試)作者vesaliusmac (困)時間17年前 (2008/08/20 23:55)推噓0(0推 0噓 0→)

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※ 引述《berrylover (看不見看不見我不要看見ꌩ》之銘言： : ※ 引述《murai111 (明鏡止水)》之銘言： : : A parallelogram diagram is given whose length is 9 and breath is 6 and : : the angle between the breadth and length is given as ‘x’ degrees : : (x degrees is greater than 90). : : Col A: Area of the parallelogram : : Col B: 50 : : 我寫D 不知大家意見 : 我覺得是D : : Given 'k' and 'm' as two numbers whose LCM is 'km' & 'm' and 'n' are : : two numbers whose LCM is 'mn'. If k, m, n > 0 : : Col A: LCM of 'k' and 'n' : : Col B: 'kn' : : 還是D 不太確定 : 應該是D [k,n]<=kn : : Given range of 'n' numbers as 9.5 and the range of 'q' numbers as 21.5. : : If the two lists are combined then range of (n+q) numbers? : : (It is also given that the numbers in the two lists are different : : and in increasing order) : range應該大於等於31吧如果兩個list都沒有一樣的數 : : Given that the number of architects in an organization is 1/4 of the : : total and the organization hired 60 more persons of which 50 are : : architects and after which the ratio of architects increased from : : 1/4 to 1/3. Find the number of people in the organization if none of : : them have gone out of the organization? : : 答360? : same here! : : 13. A right angled triangle ABC is given whose sides have been extended : : to form three squares. : : Col A: Area of square formed by hypotenuse. : : Col B: sum of areas of squares formed by other two sides : : 不確定題意我答 C : C沒錯 : a^1+b^2=c^2 : : 14. If an amount of 40,000 is split and invested, one portion at 4.5% : : and the remaining at 6% and if the cumulative interest at the end of : : 1 year is 1890(not sure) then : : Col A: Interest yielded by the portion with 4.5% : : Col B: xxx (some number) : : 不太懂雖然她題目也不是很確定 : 要列式的話應該是 0.06x + 0.045*(40,000-x) = 1980 吧 : (如果此利率是單期利率且只有一期的情況下) 算出來 x=6000 Col A=34000 : : 15. There are 'x' boxes and the balls are arranged in such a way that : : no ball is remained. If the number of boxes is reduced by 3 and if : : 12 balls are arranged in them, then 5 balls are left behind. : : What is the original number of boxes 'x'? : : A. 8 : : B.14 : : C.26 : : D.31 : : E.34 : : 不太會... : 我也不是很懂題目的意思目前的理解是 : 在某種分法之下 17顆球分給x個箱子可分盡 : 若箱子減少三個則剩下5顆球..??? @@ 我的想法是 x-3個box裡面各有12個球還會多5個出來 so 12*(x-3)+5= x的倍數 12x-31= x的倍數所以 x 應該是31 大家覺得呢？ -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 202.151.56.158