Which of the following is a rational number?

Which of the following is a rational number?
  1. $\sqrt{5}$
  2. $\dfrac{3}{7}$
  3. $\pi$
  4. $\sqrt{2}$

Solution

Rational numbers are of the form $\dfrac{p}{q}$ with $q \ne 0$ and $p, q \in \mathbb{Z}$.

Asked in: MH-SSC-9

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