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Railways PYQCBT 2 2017

RRB NTPC · Question 75

Which of the following is NOT true with reference to a real number?

  1. All irrational numbers are real numbers

  2. A real number need not necessarily be a point on the number line

  3. A Real number is unique

  4. All rational numbers are real numbers

Show answer & explanation

Answer: (B) A real number need not necessarily be a point on the number line

Explanation

Every real number corresponds to exactly one point on the number line and every point to one real number, so the statement that a real number need not be a point on the number line is NOT true.