Which number continues the sequence? 1, 2, 4, 7, 11, 16, ...
Answer and explanation
Correct answer: D. 22
- Step 1: The differences grow by one each time. Step 2. 16 + 6 = 22. Answer: 22. Why not the others: 21: the step did not grow. 23: the step grew too much. 32: the last number was doubled.
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