Question

The smallest number by which $\sqrt{27}$ should be multiplied so as to get a rational number is

(a) $\sqrt{27}$
(b) $3\sqrt{3}$
(c) $\sqrt{3}$
(d) 3

Answer 1

Out of the given choices is the only smallest number by which if we multiply we get a rational number.

Hence, the correct choice is (c).