Thank you very much for your guide.
But what i have been doing for the pass hoursss is to bang my head on a wall..i can see through that wall now...
I seriously cannot understand:
1) Why the statements means that they both knew each other has >101 points?
If one of them has x points, where x>100, then the other person has x-100 or x+100 points.
If one of them has 100 points or fewer, then the other must have x+100 points.
From the above, I guess we have an equation of : M=X+100,
so the possible answers for that could be:
2) Which part of the statement from Magneto tells that he deduces that Professor X's score is higher than his score?
If one of them has fewer than 101 points, and each has at least one point, then because someone won by 100 points, the person with fewer than 101 points knows he lost, and since he knows the winner won by 100 points, he knows the other player has his score + 100. So both have at least 101 since they neither knew who won.