Find odd one out in given sequence.
13, 25, 51, 101, 203, 406
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → 406
13, 25, 51, 101, 203, 406
THE LOGIC FOLLOWED HERE IS
13 × 2 - 1 = 25
25 × 2 + 1 = 51
51 × 2 - 1 =101
101 × 2 + 1 = 203
203 × 2 - 1 = 405 ≠ 406