Question 129

The harmonic mean of $$\frac{1}{x}$$ and $$\frac{1}{y}$$ is

Solution
Share

If X1,X2,X3 are in harmonic mean

harmonic mean=$$\frac{n}{x1}±\frac{n}{x2}±\frac{n}{x3}$$

Therefore harmonic mean of $$\frac{1}{x}$$ and $$\frac{1}{y}$$

is $$\frac{x+y}2$

View More Questions From Quant

Create a FREE account and get:

  • Download Maths Shortcuts PDF
  • Get 300+ previous papers with solutions PDF
  • 500+ Online Tests for Free