In the following question, select the missing number from the given series.
85, 84, 92, 83, 147, ?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. 122
85, 84, 92, 83, 147, ?
85 - (1)2 = 85 - 1 = 84
84 + (2)3 = 84 + 8 = 92
92 - (3)2 = 92 - 9 = 83
83 + (4)3 = 83 + 64 = 147
147 - (5)2 = 147 - 25 = 122