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Railways PYQCBT 2 2017

RRB NTPC · Question 8

Which one of the following statements is incorrect?

  1. Rational numbers do not include fractions.

  2. Real numbers which are not rational must be irrational.

  3. A real number is unique.

  4. Real numbers can be added, subtracted, multiplied or divided.

Show answer & explanation

Answer: (A) Rational numbers do not include fractions.

Explanation

Rational numbers are numbers of the form p/q, so they include all fractions such as 3/4. The statement 'rational numbers do not include fractions' is therefore incorrect.