Find the next number in the series: 2, 4, 9, 17, 28, 42, ?
Answer and explanation
Correct answer: A. 59
- Step 1: The differences are 2, 5, 8, 11, 14, which grow by 3 each time.
- Step 2: The next difference is 17, so the next term is 42 + 17 = 59.
Answer
59.
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