exc4libur wrote:

Hi ak,

Could you be more specific? Sorry.

Statement 1 : x^2 > 25

Means, either x>5 or x<-5

So, we cannot be 100% sure of whether x>5.

Hence, this statement is insufficient.

Statement 2 : 2x+7>0

which is equivalent to 2x > 7

or further, x > 3.5

So, this can give us any value between 3.6 to infinity.

Hence, we cannot be 100% sure of whether x>5.

Again, INSUFFICIENT

So, combining, we know from st-1 that x>5 or x<-5

But st-2 says, x>3.5

So, the possibility that x<-5 is NOT valid.

Hence, we are left with, x>3.5 and x>5, so obviously, x>5

and we answer the question with a definite YES.

So, option C

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