Multiple choice

Question: Find the next term in the series: 5, 16, 51, 158, ?

  1. 482

  2. 481

  3. 348

  4. 357

  5. 289
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B Correct answer
Explanation

Pattern: 5*3+1=16, 16*3+3=51, 51*3+5=158. Next term: 158*3+7 = 474+7 = 481.

AI explanation

Each number in the series is multiplied by 3, and then 1 is added to that product to arrive at the next term. For example, 5 multiplied by 3 equals 15, plus 1 equals 16; 16 multiplied by 3 equals 48, plus 1 equals 51; and 51 multiplied by 3 equals 153, plus 1 equals 158. Multiplying 158 by 3 gives 474, and adding 1 brings the total to 481. The result is 481.

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