General Intelligence Number Series Number Series Question #6529 (CAT-I)

Find the wrong number in the given series: 2, 5, 10, 17, 26, 37, 50, 64

A 37
B 64
C 26
D 50
Correct Answer & Explanation
Option B
The series represents n² + 1 for consecutive integers starting from 1: 1² + 1 = 2 2² + 1 = 5 3² + 1 = 10 4² + 1 = 17 5² + 1 = 26 6² + 1 = 37 7² + 1 = 50 8² + 1 = 65 (instead of 64) • Thus, 64 is the incorrect term.