slingfox wrote:

How would you guys approach this question:

If x and y are positive, is X > y^2?

1. y > x^2

2. y = x + 1

It is important to note that all you have to test are positive whole numbers and fractions1.

let x=2, y=5

y > x^2 => 5 > 4 ----- x > y^2 => 2 > 25 NO!

let x=1/2, y=1/2

y > x^2 => 1/2 > 1/4 ----- x > y^2 => 1/2 > 1/4 YES!

The information given in statement 1 is insufficient.

2.

let x = 2, y = x + 1 = 3

x > y^2 ==> 2 > 9 NO!

let x = 1/2, y = 5/2

x > y^2 ==> 1/2 > 25/4 NO!

The information given in statement 2 is sufficient.

Answer: B

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