Select the option in which the numbers share the same relationship as that shared by the given pair of numbers. 84 : 72

77 : 64 64 : 56 68 : 54 76 : 62

68 : 54

84 : 72 The logic followed here is : (First digit of ist number) - 1 and half of the second number = IInd number (8 - 1) (4 ÷ 2 ) 72 = 72 Similarly 68 : 54 (6 - 1) (8 ÷ 2 ) 54 = 54