Identify the number that does NOT belong to the following series.
16, 17, 25, 52, 116, 243
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 243.
Given series: 16, 17, 25, 52, 116, 243
The series follows this pattern:
16 + 13 = 16 + 1 = 17
17 + 23 = 17 + 8 = 25
25 + 33 = 25 + 27 = 52
52 + 43 = 52 + 64 = 116
116 + 53 = 116 + 25 = 241
So, the odd term in the series is 243.