Which number continues the sequence? 1, 2, 3, 5, 8, 13, ...
Answer and explanation
Correct answer: D. 21
- Step 1: Each number is the sum of the two before it. Step 2. 8 + 13 = 21. Answer: 21. Why not the others: 26: the last number was doubled. 16: a constant was added. 22 does not fit.
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