Select the option in which the numbers share the same relationship as that shared by the given pair of numbers. 12 : 20

30 : 42 24 : 36 42 : 57 18 : 28

30 : 42

12 : 20 The logic followed here is : 12 = 32 + 3 = 9 + 3 = 12 20 = 42 + 4 = 16 + 4 = 20 Similarly  30 : 42 30 = 52 + 5 = 25 + 5 = 30 42 = 62 + 6 = 36 + 6 = 42