The average of the reciprocals of x and y is-
A. $$\frac{(x + y)}{(x - y)}$$
B. $$\frac{(x + y)}{2xy}$$
C. $$\frac{2(x + y)}{xy}$$
D. $$\frac{2xy}{(x + y)}$$
Answer: Option B
Solution (By Examveda Team)
Required average$$\eqalign{ & = \frac{{\left( {\frac{1}{x} + \frac{1}{y}} \right)}}{2} \cr & = \frac{{x + y}}{{2xy}} \cr} $$
This Question Belongs to Arithmetic Ability >> Average
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