Even/Odd: Are Negative Numbers and Decimals Even or Odd? GMAT Data Sufficiency

Question: Even/Odd: Are negative numbers and decimals even or odd?

1. Is 1.2 considered even or neither?
2. Is -2 considered even or neither?

“Even/Odd: Are negative numbers and decimals even or odd?”- is a topic of the GMAT Quantitative reasoning section of GMAT. This question has been taken from the book "GMAT Quantitative Review". GMAT Quant section consists of a total of 31 questions. GMAT Data Sufficiency questions consist of a problem statement followed by two factual statements. GMAT data sufficiency comprises 15 questions which are two-fifths of the total 31 GMAT quant questions.

Solution and Explanation

Approach Solution 1:

An even number is an integer that is “evenly divisible” by 2, i.e., divisible by 2 without a remainder.

So, … -4, -2, 0, 2, 4, … are all even integers.

An odd number is an integer that is not evenly divisible by 2. So, … -3, -1, 1, 3, 5, … are all odd integers.

Approach Solution 2:

If 1.2 is an even integer and you can safely answer NO, because it’s not an integer. It’s pretty established zero is neither even nor negative but zero is considered even.

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