To simplify the fraction \(-100/5\), we compute:
\[ -100 / 5 = -20 \]
Now we need to categorize \(-20\):
- Real: Yes, \(-20\) is a real number.
- Irrational: No, \(-20\) is not irrational; it can be expressed as a fraction.
- Integer: Yes, \(-20\) is an integer.
- Whole: No, \(-20\) is not a whole number (whole numbers are non-negative integers).
Based on this categorization, the correct set of numbers that include \(-20\) is:
Real, Rational, Integer.
Thus, the correct answer is: Real, Rational, Integer.