- A40
- B36
- C44
- D42
Step-by-Step Solution
The differences are 4, 6, 8, 10 (increasing by 2). The next difference is 12, so 30 + 12 = 42.
Answer: D) 42
Find the number that should replace the question mark in the series: 2, 6, 12, 20, 30, ?
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