Question

The harmonic mean for the numbers 2, 3, 5 is
(i) 2.00 (ii) 3.33 (iii) 2.90

Answer 1

Answer:

(3) 2.90

Step-by-step explanation:

For harmonic mean we know :

n

_________________

1/x + 1/y + ......

Now here : 3/ (1/2+1/3+1/5)

= 90/31

= 2.90