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CBSESecondary School (English Medium) (5 to 8) Class 8
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Syllabus

Which of the following is not true?

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Question

Which of the following is not true?

Options

  • Rational numbers are closed under addition.

  • Rational numbers are closed under subtraction.

  • Rational numbers are closed under multiplication.

  • Rational numbers are closed under division.

MCQ
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Solution

Rational numbers are closed under division.

Explanation:

Rational numbers are not closed under division.

As, 1 and 0 are the rational numbers but `1/0` is not defined.

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Rational Numbers
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Q 4.
Chapter 1: Rational Numbers - Exercise [Page 9]

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NCERT Exemplar Mathematics [English] Class 8
Chapter 1 Rational Numbers
Exercise | Q 4. | Page 9

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