Which number continues the sequence? 8, 42, 12, 35, 16, 28, ...
Answer and explanation
Correct answer: C. 20
- Step 1: Two patterns alternate: +4 in the odd places and -7 in the even places. Step 2. The next number belongs to the first pattern: 16 + 4 = 20. Answer: 20. Why not the others: 21: the second pattern was continued instead of the first. 24: the step was added twice. 16: the step was subtracted.
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