CBSE · Class 9 · Mathematics · Number SystemsWhich of the following is a rational number?
Step-by-Step Solution
A rational number is a number that can be expressed in the form $p/q$, where $p$ and $q$ are integers and $q \neq 0$. Among the given options, $22/7$ is expressed as a ratio of two integers, making it a rational number.
Detailed Options Breakdown
Option : \sqrt{2}
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Number Systems.
Option 1: \pi
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Number Systems.
Option 2: \frac{22}{7} (Correct Answer)
Correct choice. Refer to the step-by-step verified solution guidelines above for details.
Option 3: 0.101101110...
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Number Systems.
💡 Study Guide: This question tests core syllabus concepts from Number Systems. For formulas, key summaries, and mock exam reference guides, read the full Number Systems Revision Notes.