Select the option thatis related to the third numberin the same way as the second numberis related to the first number and the sixth number is related to the fifth number.
72 : 108 :: 84 : ? :: 102 : 153
72 + 72/2 = 72 +Â 36 = 108
102 +Â 102/2 = 102 + 51 = 153
Similarly,
84 +Â 84/2 = 84 + 42 = 126
$$\therefore$$ The correct answer is option B.
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