Find the next term in the series: 2, 6, 12, 20, ...

A24

B28

C30 ✓ Correct

D36

Correct answer: (C) 30

Explanation

The next term is 30.

The differences are 4, 6, 8, rising by 2.

The next difference is 10.

Adding, 20 + 10 = 30.

Each term equals n^2 + n, giving 30 at n = 5.

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