Re: [計量] 幾題機經題請教
1.There is a square with side 10m. On top of the square there is one semicircle
with its diameter on one side of the square (diameter length = side length).
One point on the semicircle is chosen and a perpendicular is drawn on to the
square which divides the side of the square in 8:2. Find the length of the
perpendicular?
題目大致上是說有一半圓在一正方形裡面,半圓直徑等於正方形邊長,半圓上有一點作垂線
可以把square的邊分成8:2 ,求那個垂線的長度是多少?
我想不太出來怎麼做耶...請高手幫忙想一下,謝謝
2. Given ‘x’ is an integer and y, z are two consecutive integers.
Which of the following results an odd number?
A.xy
B.xy + z
C.(y+z)/2
D.[(y+z)^2]/4
&so on…
這題是印度機經,我也找不出答案耶...好像都有可能是偶或奇數...不知道題目有沒有
出錯
3.There is a set of five numbers. If the average of last two numbers is 20,
median is 7 and the mode is 4, then what is the average of the numbers?
答案是11嗎? @@" 可是他說last two number平均是20,那兩個數裡面其中一個如果也是
4呢? 這樣不就很多種可能了...4應該只要出現過兩次就可以算mode不是嗎?
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※ 編輯: we1ee 來自: 114.45.181.219 (07/29 00:08)
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