I do not have MGMAT Number Prop Guide. Anyway, I hope the following explanation would be reasonable. |x-4| means two cases: +(x-4) and -(x-4) i) (x-4) = 4-x, solve for x, and you will get x = 4 ii) -(x-4) = 4-x. If you bring the x terms to one side and '4's on other side, you will end up in -x+x = 4...

I do not know why didn't this question get much importance... Is this problem very simple? My explanation is as follows. Correct me if I am wrong. |X| < X^2. This means, +ve value of X is less than the square of X. This means that +ve value of X is not a fraction. {any fraction squared will resul...

Hi All, This particular question must have discussed in this forum. But couldn't locate the link. I got the following question from GMAT Prep. If x =/ 0, √(x^2)/x = {=/ means " not equal to "} A) -1 B) 0 C) 1 D) x E) |x|/x I marked C. But the Official Answer is:E I chose C because, I tho...