Hi!
I am having problems understanding probably the most basic math problems on the gmat.
These types give me the most problem & I was wanting help in understanding them. Does anyone know of a good source or book I can get to enlighten me. Thanks
If n is a positive interger, then n(n+1)(n+2) is
a - even only when n is even
b - even only when n is odd
c - odd whenver n is odd
d - divisible by 3 only when n is odd
e divisible by 4 whenver n is even
If x & y are different intergers and x squared = XY
which of the followong must be true?
I. x=0
II. y=0
III. x = - y
A. I only
B. II only
C III only
D. I & II only
E. I,II, III
Thanks for your help!