ic3ncok3 wrote:

Correct me if I'm wrong. I think we are forgetting that the question is not asking for the smallest integer.

the smallest value of y would be 5 x 3 x 2^2 in order for 450y = n^3 to be true

but, y could also be 5^4 x 3^4 x 2^5 and that would still make choices I, II and II into integers

Hope that's correct.

Must implies that "at any case or worst case scenerios". Those (y's value other than 2^2*3*5) are not the worst case scenerios.

Aaccording to the question: y must be at least 60 (or 2^2*3*5). if y is none othe r than 60, II and III cannot be an integer.

So none other B is an OA. Hope everybody agrees.

_________________

Verbal: new-to-the-verbal-forum-please-read-this-first-77546.html

Math: new-to-the-math-forum-please-read-this-first-77764.html

Gmat: everything-you-need-to-prepare-for-the-gmat-revised-77983.html

GT