Find the missing number: 2, 6, 12, 20, 30, ?
- 42
- 43
- 44
- None of these
Explanation
6-2=4, 12-6=6, 20-12=8, 30-20=10
Differences go 4, 6, 8, 10... next is 12
So 30 + 12 = 42
Last updated 07 Nov 2026 by NA
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