Select the option that is related to the third number in the same way as the second number is related to the first number and the sixth number is related to the fifth number. 6: 16 :: 20 : ? :: 11 : 81

361 324 120 91

324

6: 16 :: 20 : ? :: 11 : 81 The logic followed here is : (Ist number - 2)2 = IInd number AS (6 - 2)2 = 42 = 16 And 11 : 81 (11 - 2)2 = 92 = 81 Similarly 20 : ? (20 - 2)2 = 182 = 324