Manager
Joined: 12 Apr 2017
Posts: 139
Location: United States
Concentration: Finance, Operations
GPA: 3.1

Good question, it test your ability to pay attention to detail.
Is 143/z an integer, Yes or NO.
1) Insufficient, z can be any prime number which is 143/2 = 71.5 not an integer, 143/13 = 11 is an integer 2) Insufficient, Z is 9,10,11,12,13,14,15,16, 143/10 = 14.3, not an integer but 143/11 = 13, is an integer
Combine 1) Z is a prime number and 2) between 8 and 17, which leads only two possible choices for Z = 11 or 13.
Plug back into the original question is "is 143/z an integer." Can get a solid yes.
143/11 = 13 and 143/13 = 11, both results are integers
