The pattern followed is:-
Second Number = First Number × 7 - 3 Third Number = Second Number × 3 + 7 The given set is (6, 39, 124)
First Number = 6
Second Number = First Number × 7 - 3 = 6 × 7 - 3 = 42 - 3 = 39 = 39
Third Number = Second Number × 3 + 7 = 39 × 3 + 7 = 117 + 7 = 124 = 124
Checking the options: 1) (5, 38, 121) First Number = 5
Second Number = First number × 7 - 3 = 5 × 7 - 3 = 35 - 3 = 32 ≠38
Third Number = Second Number × 3 + 7 = 38 × 3 + 7 = 117 + 7 = 124 ≠121
2) (9, 34, 235) First Number = 9
Second number = First Number × 7 - 3 = 9 × 7 - 3 = 63 - 3 = 60 ≠34
Third Number = Second Number × 3 + 7 = 34 × 3 + 7 = 102 + 7 = 109 ≠235
3) (8, 53, 166) First Number = 8
Second Number = First Number × 7 - 3 = 8 × 7 - 3 = 56 - 3 = 53 = 53
Third number = Second Number × 3 + 7 = 53 × 3 + 7 = 159 + 7 = 166 = 166
4) (7, 14, 101) First Number = 7
Second number = First Number × 7 - 3 = 7 × 7 - 3 = 49 - 3 = 46 ≠14
Third Number = Second Number × 3 + 7 = 14 × 3 + 7 = 42 + 7 = 49 ≠101
Hence, the correct answer is "(8, 53, 166)".