Bunuel wrote:

Is 10x > x^10 ?

(1) x is a positive number.

(2) x^2 – 1 < 0

(1) x is a positive number.Let x = 1/2.........5 > (1/2)^10.............Answer is Yes

Let x = 2...........20 > (2)^10..............Answer is No

Insufficient

(2) x^2 – 1 < 0x^2 < 1

-1 < x < 1

Let x = 1/2.........5 > (1/2)^10.............Answer is Yes

Let x =-1/2.........-5 > (-1/2)^10.............Answer is No

Insufficient

Combine 1 & 2

From Statement 1, x > 0

From Statement 2, -1 < x < 1

We can conclude that 0 < x < 1 ...............our example of 1/2 gives clear answer.

Answer: C