The answer is E.roy33 wrote:in the number line the distance between X & Y is greater than the distance between X & Z.Does Z lie between X & Y on the number line?
1--xyz<0
2-- xy<0.
Can anyone please explain.........
1. since XYZ<0, either they're all negative or one of them is negative. Z may or may not lie between X & Y. INSUFF
2. Since XY<0, either X or Y is negative. INSUFF
Together, we're able to deduce that Z is positive. Z could be positive and yet it may or may not be between X & Y. INSUFF