Lets consider n=1. 1st statment says that "eaxactly one of the statements of the list of 100 statements is false". Now, that false statement can be this 1st statement itself or some other statement can be false which means 99 statements are true.
So, answer is negation of "eaxactly one of the statements of the list of 100 statements is false" or 99 statements are true.. That means 0 statements can be true(which is all are false) or more than 1(i.e max 98) statements are true or exactly 99 statements are true.
So range is 0 <= no of true statements <= 99
Going ahead will make me mad :)