Jinglander wrote:
If N is a positive integer, is 9 a factor of N?
(1) 18 is a factor of N^2
(2) 27 is a factor of N^3
(1) 18 is a factor of N^2
Let N = 6.............. 18 factor of (6)^2................Answer is No
Let N =18.............. 18 factor of (18)^2..............Answer is Yes
Insufficient
(2) 27 is a factor of N^3
Let N = 6.............. 27 factor of (6)^3................Answer is No
Let N =18.............. 27 factor of (18)^3..............Answer is Yes
Insufficient
Combine 1 & 2
Use same examples above.....No clear answer
Answer: E