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Which of the following is an example of an Integer in Ruby?

easy📝 Conceptual Q11 of 15
Ruby - Variables and Data Types
Which of the following is an example of an Integer in Ruby?
A"100"
B3.14
Ctrue
D42
Step-by-Step Solution
Solution:

  1. Step 1: Understand Integer definition

    An Integer is a whole number without any decimal part.

  2. Step 2: Identify the correct option

    42 is a whole number, so it is an Integer. 3.14 has decimals (Float), "100" is a string, and true is a boolean.

  3. Final Answer:

    42 -> Option D

  4. Quick Check:

    Integer = 42 [OK]
Quick Trick: Integers have no decimal point, floats do. [OK]
Common Mistakes:
  • Confusing strings with numbers
  • Thinking floats are integers
  • Mixing booleans with numbers

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