Positive integers x, y, and z are such that x is a factor of y and y is a factor of z, if z even?
a. xz is even
b. y is even
IMO : D
Positive integers
This topic has expert replies
-
- Master | Next Rank: 500 Posts
- Posts: 424
- Joined: Sun Dec 07, 2008 5:15 pm
- Location: Sydney
- Thanked: 12 times