The harmonic mean of 1/x and 1/y is

Correct Answer is : the reciprocal of average of x and y

the reciprocal of average of x and y

the reciprocal of the sum of x and y

TS ICET 24 May 2019 Shift 1 Paper

Question : 129 of 200

Marks: +1, -0

The harmonic mean of

1/x

and

1/y

Solution:

Harmonic mean of

1/x,1/y=2/{x+y}

= reciprocal of average of x and y

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