GMAT/留學申請專業顧問 Donz 之資訊交流園地

  x，a，b 是positive real number,問 a<x<b?
  (1) x<(a+b)/2

  19.
  Is z equal to the median of the three positive integers x, y, and z ?

What is the median number of employees assigned per project for the projects at Company Z?

 234. 還有一題ds  a*b〉0?  (1)a-b>0  (2)a+b>0

f(x) >0, f(x+y) = f(x)f(y) 問f(0)?

Solution:

4. [DS] If 500 is the multiple of 100 that is closest to x and 400 is the multiple of 100 closest to y, which multiple of 100 is closest to x+y?
    1) x<500

1.  x+y, x+5y, x-y, 5x-y 四個數任選二，乘積為 x^2-(by)^2，b為整數，求機率
 解: 1/6