If 600y is a perfect square (the square of an integer) and y is a positive integer, then which of the following must also be an integer?
I y/6
II y/42
III y/30  Choose the correct choice
A) I only B) III only C) I and II only D) I and III only E) I, II, and III
600∗y=2^3∗3^1∗5^2∗y   For an integer to be a perfect square means that all its prime factors must have even powers.   Min value of yy required fo that is 2^1∗3^1   I onlynswer I only
<result>A</result>
If 600y is a perfect square (the square of an integer) and y is a positive integer, then which of the following must also be an integer?
I y/6
II y/42
III y/30