chintzzz wrote:

If n is an integer, which of the following CANNOT be a factor of 3n+4?

A. 4

B. 5

C. 6

D. 7

E. 8

Another approach is to

plug in integer values for n and start ELIMINATING answer choices..

Try n = 0

So, 3n + 4 = 3(0) + 4 =

44 IS a factor of

4ELIMINATE A

Try n = 1

So, 3n + 4 = 3(1) + 4 =

77 IS a factor of

7ELIMINATE D

Try n = 2

So, 3n + 4 = 3(2) + 4 =

105 IS a factor of

10ELIMINATE B

Try n = 3

So, 3n + 4 = 3(3) + 4 =

13Doesn't help...

Try n = 4

So, 3n + 4 = 3(4) + 4 =

168 IS a factor of

16ELIMINATE E

By the

process of elimination, the correct answer is C

Cheers,

Brent

_________________

Brent Hanneson – Founder of gmatprepnow.com