GMAT Practice Question Set #61 (Question 181-183)

Problem Solving Question #183: Expression must be an integer  
Time 0 0 : 0 0 : 0 0

If n and y are positive integers and 450y = n3, which of the following must be an integer? 

I. `y/(3*2^2*5)` 

II. `y/(3^2*2*5)` 

III. `y/(3*2*5^2)`




I only


II only


III only


I, II, and III

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