Question

FD,HF,KH,OH,?
A)GH
B)EF
C)RS
D)TL​

Answer 1

option( b ) EF

is correct because in second series see here d=4 , f=6 and h=8

(a=1 , b=2 and so on...)

in the second second series :-

4+2=6

6=6

f= f

and

6+2=8

h=h

and

then there is again h which means 8

if we subract 2 from 8 then again there is 6 which is f so, option b is correct because f is present in series.