Correct Answer - Option 2 : (1, 2, 6)
The logic is:
(2, 6, 42) → 2 × (2 + 1) = 6; 6 × (6 + 1) = 42
Similarly,
2) (1, 2, 6) → 1 × (1 + 1) = 2; 2 × (2 + 1) = 6
Other option do not follow the similar pattern:
1) (4, 12, 86) → 4 × (4 + 1) = 20 ≠ 12; 12 × (12 + 1) = 156 ≠ 86
3) (9, 13, 43) → 9 × (9 + 1) = 90 ≠ 13; 13 × (13 + 1) = 182 ≠ 43
4) (4, 8, 39) → 4 × (4 + 1) = 20 ≠ 8; 8 × (8 + 1) = 56 ≠ 39
Hence, ‘(1, 2, 6)’ is the correct answer.