Question

If $W$ is a set of whole numbers and $Z$ is a set of integers. Then, $Z-W$ will be a set of

• A. Positive Integers
• B. Negative Integers
• C. Natural Numbers
• D. Real Numbers

Answer 1

The correct option is B Negative Integers

In roster form,
$Z=\{...,-3,-2,-1,0,1,2,3,...\}$
$\&W=\{0,1,2,3,...\}$
$Z-W$ will be set of elements which are in $Z$ but not in $W.$
$\Rightarrow Z-W=\{...,-3,-2,-1\},$ which is a set of negative integers.