Question

The arithmetic mean and harmonic mean of two numbers are 12.5 and 285/25, find the
geometric mean.
Average of seven consecutive natural number is 50, find the product of 2nd largest and​

Answer 1

(GM)²=AM×HM

=12.5×285/25

=12.5×11.4

=142.5

GM=

$\sqrt{142.5}$

GM=11.9