SSC CGL Official PYQReasoning12 Sep 2025 (Shift 1)
Q.
Identify the odd one: 3, 5, 7, 11, 13, 17, 19, 21
A
(a) 21
B
(b) 13
C
(c) 11
D
(d) 19
Correct Answer: Option A)
Detailed Step-by-Step Explanation:
All numbers in the sequence are prime numbers except 21, which is a composite number (). Hence, the correct answer is option (a) 21.