[計量] 印度網站的Q 數題

看板GRE作者 (VICTORIA)時間16年前 (2009/05/26 22:27), 編輯推噓0(000)
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Given a series -9, 10,-11, 12,-13, 14, -15.............. Col A: The sum of the series till 100 Col B: 45 Ans: B if the meaning till 100 is till number 100 appear then 10+2(n-1)=100 n=46 pairs of the sum is 1 if it isn't, then the sum of the series should be 100 could anyone answer me? In a company, there are 54 members. If Wednesday has more number of birthdays than on any other day of the week, then Col A: The least number of birthdays on Wednesday Col B: 8 Ans: A i do have no idea......... Given that there are 'x' boxes and the balls are arranged in such a way that no ball is left. 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'? i didn't find the answer....... Given a series. 1, 1/(2t), 1/(2)^2*t, 1/(2)^2*(t)^2 ................. For t=2, if odd terms are 1/2 times the previous number and even terms are 1/(t) times the previous number, then Col A: The eight term (8th) in the series Col B: 1/(2)^8 Ans: C it really seems strange to me as the question describes that t=2 and gives the series at the begining. the question seems to have two different definitions of the series? In a contest, there are 5 judges who are to rate (they can rate from 0-10) the scores of 8 different groups. Category Scores Solo 14 Group 17 xxxx 25 xxxx 29 xxxx 31 xxxx 35 xxxx 44 xxxx 49 What is the minimum number of teams, which must get 7 or more than 7 score from atleast one judge? Ans:4 how and what concept should i have to cope with the question like this? Given stock price at end of February as x. If stock price increase in March is 10% & increase in April is again 10% and if May price = 70% of April price, then Col A: The May price Col B: 0.9x Ans: B isn't the price in March x*110% ? or is that i misunderstand the meaning of the question Thank you guys for answering my questions ._. -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 114.44.201.125 ※ 編輯: KRZYSZ 來自: 114.44.201.125 (05/26 22:44)
文章代碼(AID): #1A6_nQcI (GRE)
文章代碼(AID): #1A6_nQcI (GRE)