If n and y are positive integers and 450y= n^3, which of the following must be an integer?
I. y / (3 * 2^2 * 5)
II. y / (3^3 * 2 * 5)
III. y / (3 * 2 * 5^2)
ANSWER --> I Only
Not sure why that is the answer though, The only thing I can come up with is that I allows me to take the cube root so that it equals n/90.
I. y / (3 * 2^2 * 5)
II. y / (3^3 * 2 * 5)
III. y / (3 * 2 * 5^2)
ANSWER --> I Only
Not sure why that is the answer though, The only thing I can come up with is that I allows me to take the cube root so that it equals n/90.
