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Reena says, “Every non-terminating decimal is irrational.” Which of the following numbers disproves her statement?

Answer and explanation

Correct answer: \(0.\overline{3}\)

\(0.\overline{3}\) is non-terminating but recurring, and \(0.\overline{3}=\frac{1}{3}\); hence it is rational. \(\sqrt{2}\) and \(\pi\) are non-terminating, non-recurring irrational numbers. Exam tip: every recurring decimal is rational.

Related tags

Number SystemsDecimal RepresentationRecurring DecimalsRational NumbersIrrational NumbersMathematicsClass 9 Mcq

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