Re: [計量] Bigbook的問題
※ 引述《careless (ling)》之銘言：
: 1. In the figure above, the circle is inscribed in the square.
: If the square has side of length 100, gheen the perimeter of the square
: is approximately how much greater than the circumference of the circle.
: (A) 9,686
: (B) 2,150
: (C) 243
: (D) 100
: (E) 86
: 答案是(E)
square的周長=400
circle的周長=100(直徑)*拍(我不知道怎麼打這個字....)
拍=3.14 所以circle的周長=314
400-314=86
: 2. Each of the following numbers has two digits blotted out.
: Which of the numbers could be the number of hours in x days,
: where x is an interger?
: (A) 25_,_06
: (B) 50_,_26
: (C) 56_,_02
: (D) 62_,_50
: (E) 65_,_20
: 答案是(E) 這題是用4的倍數來檢驗最後兩位數而得的嗎?
我是這樣想的.....不知道有沒有其他方法?!
: 3. A manufacture packages soap powder in containers of three different
: sizes. The amount of soap powder in a full large container could fill
: exactly 3 of the medium containers or exactly 5 of the small containers.
: If an equal number of small an large containers would fill 90 medium
: containers, how many small containers will be filled?
: 答案是 (A) 25
: 謝謝~
有L M S這3個size 根據題意1L=3M=5S
90M=xS+xL 因為S跟L為equal number 所以假設為各x個
90M=0.6xM+3xM 則x=25
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