If y is the reciprocal of rational number x,
Question:

If y is the reciprocal of rational number x, then the reciprocal of y will be

(a)x

(b) y

(c) $\frac{x}{y}$

(d) $\frac{y}{x}$

Solution:

(a) If $y$ be the reciprocal of rational number $x$, i.e. $y=\frac{1}{x}$ or $x=\frac{1}{y}$.

Hence, the reciprocal of y will be x.