Identify the next number in the series. 24, 51, 106, 217, ____

2025

Identify the next number in the series.

24, 51, 106, 217, ____

  1. A.

    361

  2. B.

    440

  3. C.

    625

  4. D.

    509

Attempted by 53 students.

Show answer & explanation

Correct answer: B

1. Analyze the given series to find a consistent mathematical relationship between consecutive terms: 24, 51, 106, 217. 2. Identify the pattern: Each number is multiplied by 2, and then an incrementally increasing integer (starting from 3) is added. - 24 × 2 + 3 = 51 - 51 × 2 + 4 = 106 - 106 × 2 + 5 = 217 3. Apply the pattern to find the next number: Multiply 217 by 2 and add 6. - 217 × 2 + 6 = 434 + 6 = 440. Final Answer: Option B

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