Question

find hm between 12 and 25............................H.m MEANS =HARMONIC MEAN ...........plzzzzzzzzzzzz tell me answer fast​

Answer 1

HM =2ab/(a+b)

where a is first number and b is 2nd number

here

a=12 and b=25

H.M=(2*12*25)/(12+25)

H M=600/37=16.2

Answer 2

Answer:

HM= n/{1/a +1/b +1/c +1/d.......}

=2/{1/12 + 1/25}

=2*12*25/(12+25)

=600/37

Cheers!