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Complete the series: 2, 6, 12, 20, 30, …
A36
B40
C48
D42
Answer & Solution
Correct answer: D. 42
1. Differences: 4, 6, 8, 10 → next difference 12.
2. 30 + 12 = 42.
3. Hence 42.
_Source: UGC NET Paper 1 Study Book (ugc-net.com class notes) — Mathematical Reasoning_