### The average of the reciprocals of x and y is.

$\text { A. } \frac{(x+y)}{(x-y)}$

$\text { B. } \frac{(x+y)}{2 x y}$

$\text { C. } \frac{2(x+y)}{x y}$

$\text { D. } \frac{2 x y}{(x+y)}$

$\begin{array}{l}\text{ Required average }\\ =\Large\frac{\left(\Large\frac{1}{x}+\frac{1}{y}\right)}{2}\\ =\Large\frac{x+y}{2xy}\end{array}$