Quantitative Comparison in GRE

[microlifecc]

I got this Quantitative Comparison question on my GRE test:

 

Compare:

 

A: n!/(n/2)!

 

B: 2*(n/2)!

 

where n is an even positive integer(n>=2)

 

Options:

 

A: A is greater

 

B: B is greater

 

C: Both are equal

 

D: Can't be determined with the information provided

 

Please tell me how I should proceed. I got this in my last section(My 2nd Quant section).

 

I marked it as A but I'm not sure about it.

[sibster]

Hmmm. Well, if n=2, then A and B both equal 2. If n=4, then A is 12 and B is 4. So I'd go with D.

[another_time]

I agree with sibs...  Princeton Review has very quick and easy methods for solving most probs on GRE Q.  This is definitely a problem where plugging in a couple of values could get you the correct answer, D, in a minute or less...