What number should replace the question mark:2, 6, 12, 20,
- 30
- 36
- 42
- 48
Explanation
1 x 1 + 1 = 2
2 x 2 + 2 = 6
3 x 3 + 3 = 12
4 x 4 + 4 = 20
5 x 5 + 5 = 30
6 x 6 + 6 = 42
Related MCQs
- 52
- 30
- 28
- 48
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