[計量] Given two concentric circles, ...
看板GRE (GRE入學考試)作者sunrise5566 (想法很邪惡 行為很糟糕)時間17年前 (2009/02/17 18:23)推噓1(1推 0噓 3→)留言4則, 2人參與討論串1/3 (看更多)
Given two concentric circles, such that
a tangent to the smaller circle cuts the
larger one at two points 'R' and 'S'.
If the radius of smaller circle is 2 and
larger circle is 5, then what is the length of segment 'RS'?
ANS:2 sqrt(5)
^^^^^^^^^錯的 ANS is :2*sqrt(21)
If the remainder when 10^32 is divided by 11 is 'R', then
Col A: R+2
Col B: 3
ANS:B (我算是c = =)
^^錯的 正確是c
If R = Set of prime numbers from 1 to 50,
S = Set of multiples of 15 from 10 to 50,
T = Set of odd numbers from 1 to 50, then
how numbers will be common in all the three sets?
ANS: 0
Given numbers 1, 2, 3, 4 & 5.
What is the probabilty of choosing two odd numbers
at random from the given numbers such that
the sum of the two numbers must be an even number?
ANS: (100% 或 30% ) 好像是30 韓文太醜 看不懂 = =
以上4題 拜託各位了 <(_ _)>
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※ 編輯: sunrise5566 來自: 61.230.77.132 (02/17 19:31)
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