Multiple choice

Choose the correct alternative from the given ones that will complete the series 1, 4, 10, 19, ?, 46

  1. 31

  2. 32

  3. 46

  4. 40
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A Correct answer
Explanation

Finding the pattern in 1, 4, 10, 19, ?, 46: Differences are 3, 6, 9, ?, ?. The differences increase by 3 each time (3, 6, 9, 12, 15). Continuing: 19 + 12 = 31, and 31 + 15 = 46 (which matches the last term). So the missing number is 31.

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