GMAT-Even/Odd Arithmetic Rules

Question 1

odd + odd =
OR
odd – odd =
(if both odd, result is even)

Answer 1

even

Question 2

odd – even =
OR
even + odd =
(if different , result is odd)

Answer 2

odd

Question 3

even + even =
OR
even- even =
(if both even, result is even)

Answer 3

even

Question 4

odd x odd =

Answer 4

odd

Question 5

even x even =

Answer 5

even

Question 6

even x odd =

Answer 6

even

Question 7

odd /even =

Answer 7

fraction

Question 8

Even/Odd Definitions Applied

Answer 8

Even and odd are terms that apply to integers only.

Thus if a statement says “odd number x,” this is the same as
saying the “odd integer x.”
Additionally, zero is an even number.

Negative integers can also be even or odd.