Identify the number that does NOT belong to the following series.
18, 27, 35, 45, 54
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 35.
Given series: 18, 27, 35, 45, 54
The series follows this pattern:
18 + 9 = 27
27 + 9 = 36
36 + 9 = 45
45 + 9 = 54
So, 35 is the odd one out in the series.