Question

if a,8,b are in AP;a,4,6 are in GP;a,x,b are inHP;then x=​

Answer 1

Given,

a,8,b are in A.P; a,4,b are in G.P; a,x,b are in H.P

=> a+b=16

and ab=16

now x=

a+b

2ab

=2