Find the wrong number in given series :
89, 78, 86, 80, 85, 82, 83
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → 86
89, 78, 86, 80, 85, 82, 83
THE LOGIC FOLLOWED HERE IS :
89 - 11 = 78
78 + 9 = 87 ≠ 86
87 - 7 = 80
80 + 5 = 85
85 - 3 = 82
82 + 1 = 83