If n ≠ 0, which of the following must be greater than n?

I 2n
II n²
III 2 - n
A. I only
B. II only
C. I and II only
D. II and III only
E. None

Question

If n ≠ 0, which of the following must be greater than n?

I	2n
II n²
III	2 - n
A. I only 
B. II only 
C. I and II only 
D. II and III only 
E. None

anonymous · Answer

any one with solution ? @AnswerMyQuestions

krazykricket · Answer

Remember that n could be positive negative or a fraction. Try out a few cases: In case I, if n is -1, then 2n is less than n. In case II, if n is a fraction such as ½ then n2 will be less than n. In case III, if n is 2, then 2-n = 0, which is less than n. Therefore, none of the choices must be greater than n

anonymous · Answer

if i put n=-1 in case 3rd then ?????

anonymous · Answer

@KrazyKricket