SSC CGL – Combined Graduate Level Examination · Question 15
Find the missing number: 2, 6, 12, 20, ?, 42
Show answer & explanation
Answer: (B) 30
Explanation
n(n + 1): 5 × 6 = 30.
SSC PYQTier 1 2025
SSC CGL – Combined Graduate Level Examination · Question 15
Answer: (B) 30
n(n + 1): 5 × 6 = 30.