Equations : M - 3Z > 0 -M + 4Z > 0 What I did is I simply noticed that if you add the two equations, M cancels off and you are left with only one Z which is practical : M-M -3Z +4Z > 0 gives : Z>0 NOTE : obviously you can do this only if the two inequality signs face in the same directio...

Hello Harjai Basically you rewrote M-3Z>0 to M>3Z 4Z-M>0 to 4Z>M So far no mistake. But to get to 4 > M/Z > 3 means that you divided both sides by Z like so : M-3Z>0 to M>3Z TO M/Z>3 4Z-M>0 to 4Z>M TO 4>M/Z This forbidden as you don't know if Z is positive or nega...

Probably in the sentence "xy REPRESENTS a 2 digit number" x is the tenths and y the unit digit, otherwise it would maybe have been "xy IS a 2 digit number" or even clearer (lets hope will be so at the exam if it is the case) "x times y is a 2 digit number" Interesting d...

This is my guess : I translated the problem as such : 450 < X < 550 350 < Y < 450 You can sum it up : 800 < X + Y < 1000 Now add (a) and (b) 450 < X < 500 350 < Y < 400 You can sum it up too : 800 < X + Y < 900 Again isnt enough information. My guess would be E.

Hello, I was asking myself similar questions, does someone think its OK to think like that: If I apply now to my dream school and am accepted, good. If I am rejected, doesnt applying again to the same school show my motivation? Or does being a reapplicant lower our chances, all things equal? Plus I ...

Hello goelmohit2002 I have been rather furious to see that you already asked this exact same question last december in another forum as goelmohit2002 : http://www.beatthegmat.com/closest-multiple-of-100-t43171.html At the time you also got the exact same answer I gave. All in all the same question h...