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GRE Test Prep : Discrete Quantitative Comparison


Formats Quiz Review
Multiple choice

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1.

There are 800  animals on a farm. Three-fourths of them are cows. Of the cows, about 60% are white. How many cows on the farm are not white?

  600

  320

  360

  240

  200

  Half-n-half Clue
 

2.

A university has 2000 graduate students. The number of undergraduate students is 4  / 3  times the number of graduate students. What fraction of the students in the university are undergraduates?

  4 / 3

  3 / 7

  7 / 4

  4 / 7

  7 / 3

  Half-n-half Clue
 

3.

Consider a square with side of length a, and an an isosceles right triangle with one side of length a and hypotenuse of length b. What is the sum of the areas of the square and the triangle?

  2a2/3

  a2 + ab/2

  2a3b

  a3b/2

  3a2/2

  Half-n-half Clue
 

4.

If x + y = 15 and 5 x - y = 15, then x - y is equal to

  15

  -5

  5

  -45

  0

  Half-n-half Clue
 


 
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