> 2. Only conclusion 1 is necessarily true, because of the transitive property of inequalities; X ? Y and Z/Y can be rewritten as X < Y <= Z. However, we cannot relate any magnitude information to V and it is not necessarily true that a number becomes larger when multiplied by another number (if we assume X is zero and V is positive, for instance).

It says that the product of X and V is greater than or equal to the sum of X and V. Conclusion 2 is that the sum of X and V is less than the product of X and V. How could the latter claim be false if the former premise is true?

I agree with you on 4 and came to it another way: 3^3 : 3 * (3-1) * (3+1) :: 4^3 : 4 * (4-1) * (4+1)

4 * 3 = 12 * 5 = 60