Analogy Questions

Select the related word/letters/numbers from the given alternatives:

381 : 160 : :478 : ?

Choose the related word/letters/number from the given alternatives.

Seismology : Earthquake :: Hydrology : ?

Choose the related word/letters/number from the given alternatives.

GH : 78 : : ? : 1819

Select the related word/letters/number from the given alternatives.

18 : 30 : : 36 : ?

Select the related word/letters/number from the given alternatives.

LNPR :TVXZ : NPRT : ?

Select the related letters from the given alternatives.

ACE : YAC :: BDF : ?

Select the related word from the given alternatives.

Hope : Despair :: Lunatic : ?

Select the related word/letters/numbers from the given alternatives:

9 : 25 :: 49 : ?