[問題]PREP-T2-Q11 Q43 Q180 Q193 (PS)

[oneseven]

Q11
Which of the following lists the number of points at which a circle can intersect a triangle?
(A) 2 and 6 only
(B) 2,4,and 6 only
(C) 1,2,3,and 6 only
(D) 1,2,3,4,and 6 only
(E) 1,2,3,4,5, and 6

Answer : E

Q43
A college admissions officer predicts that 20 percent of the students who are accepted will not attend the college. According to this prediction, how many students should be accepted to acheive a planned enrollment of x students?
(A) 1.05x
(B) 1.1x
(C) 1.2x
(D) 1.25x
(E) 1.8x

Answer : D

Q180
Bob invested $2,000 in fund A and $1,000 in fund B. Over the next two years, the money in fund A earned a total interest of 12 percent of the two years combined and the money in fund B earned 30 percent annual interest compounded annually. Two years after Bob made these investments, Bob's investment in fund A was worth how much more than his investment in fund B?
(A) $500
(B) $550
(C) $600
(D) $650
(E) $700

Answer : B

Q193
In a class of 30 students, 2 students did not borrow any books from the library, 12 students each borrowed 1 books, 10 students each borrowed 2 books, and the rest of the students each borrowed at least 3 books. If the average number of books borrowed per student was 2, what is the maximum number of nooks that any single student could have boorowed?
(A) 3
(B) 5
(C) 8
(D) 13
(E) 15

Answer : D

[hey]

第43題
將需接受的學生人數設為A,則0.8A=X, 則可求出A=1.25X

第180題
Fund A=2000*(1+12%)=2240
Fund B=1000*(1+30%)=1690
difference=2240-1690=550

第193題
average=2 per students, 則全部必需為2*30=60
60-12*1-10*2=28 (這28本必需分給最後的6個學生)
最後還餘6個學生, 其每人所借的書都必需超過3本, 要求某一個學生最多能借幾本?
28-5*3=13 (借最多的那人最多可以借13本)

[plilo]

第11題在問一個圓跟一的三角形能夠有幾個交叉點
畫一下圖就可知了
1~6個交點都是有可能的

[chris8888]

第43題
將需接受的學生人數設為A,則0.8A=X, 則可求出A=1.25X

第180題
Fund A=2000*(1+12%)=2240
Fund B=1000*(1+30%)=1690
difference=2240-1690=550

第193題
average=2 per students, 則全部必需為2*30=60
60-12*1-10*2=28 (這28本必需分給最後的6個學生)
最後還餘6個學生, 其每人所借的書都必需超過(應該要改成at least 至少)3本, 要求某一個學生最多能借幾本?
28-5*3=13 (借最多的那人最多可以借13本)

[小花]

Bob invested $2,000 in fund A and $1,000 in fund B. Over the next two years, the money in fund A earned a total interest of 12 percent for the two years combined and the money in fund B earned 30 percent annual interest compounded annually. Two years after Bob made these investments, Bob's investment in fund A was worth how much more than his investment in fund B ?

(A) $500
(B) $550
(C) $600
(D) $650
(E) $700

這題的题意 不是兩年 複利嗎?
為什麼可以這麼算?

第43題


第180題
Fund A=2000*(1+12%)=2240
Fund B=1000*(1+30%)=1690
difference=2240-1690=550

[chris8888]

Bob invested $2,000 in fund A and $1,000 in fund B. Over the next two years, the money in fund A earned a total interest of 12 percent for the two years combined and the money in fund B earned 30 percent annual interest compounded annually. Two years after Bob made these investments, Bob's investment in fund A was worth how much more than his investment in fund B ?

(A) $500
(B) $550
(C) $600
(D) $650
(E) $700

1. 2000 * (1+0.12) = 2240
1000 * (1+0.3)^2 = 1690
2240 - 1690 = 550元

大哥, 人家寫錯你還以為自己搞錯, 我不是跟你說了嗎? 數學要動手算, 不用要眼睛算, 會吃虧的!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

這題的题意 不是兩年 複利嗎?
為什麼可以這麼算?

第43題


第180題
Fund A=2000*(1+12%)=2240
Fund B=1000*(1+30%)=1690
difference=2240-1690=550