Question

Mark (✓) against the correct answer in each of the following:
Which of the following is a rational number?
(a) $\frac{2}{\sqrt{3}}$
(b) $\frac{\sqrt{2}}{3}$
(c) $3\sqrt{5}$
(d) $\frac{-3}{5}$

Answer 1

(d) $\frac{-3}{5}$

The number of the form $\frac{p}{q}$, where p and q are integers and $q\ne 0$, are known as rational numbers.
Here $-3$ and 5 are integers and $5\ne 0$.
Therefore, $\frac{-3}{5}$ is a rational number.