In the following question, select the related number from the given alternatives.54 : 135 ∷ 32 : ?

The logic followed here is:

54 : 135 → (27 × 2 = 54; 27 × 5 = 135)

32 : ? → (16 × 2 = 32; 16 × 5 = 80)

Hence, the answer is ‘80’.