1,2,4,8,61,221,244,884,?
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8670
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8672
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8671
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987
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1467
Reveal answer
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C
Correct answer
Explanation
The pattern follows: multiply previous term by 3 and add its digits. Starting from 8: 8×3+8=32 (reverse digits to get 23), 23×3+(2+3)=71 (reverse to get 17), 17×3+(1+7)=58 (reverse to get 85)... Following this pattern through the sequence leads to 8671 as the next term.
AI explanation
Each term is obtained by doubling the previous term and then reversing its digits. Checking: 8x2=16 reversed is 61; 61x2=122 reversed is 221; 221x2=442 reversed is 244; 244x2=488 reversed is 884. So the next term is 884x2=1768 reversed = 8671.