Correct Answer & Explanation
Option C
The series follows the pattern of consecutive product of integers n × (n + 1) or adding consecutive even numbers:
1 × 2 = 2
2 × 3 = 6
3 × 4 = 12
4 × 5 = 20
5 × 6 = 30
6 × 7 = 42
7 × 8 = 56
8 × 9 = 72
• Thus, the next number in the sequence is 72.