Multiple choice

What is the next term of the sequence 3, 5, 9, 15, 23...?

  1. 28

  2. 30

  3. 33

  4. 35
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C Correct answer
Explanation

The sequence is 3, 5, 9, 15, 23. Differences are 2, 4, 6, 8. The next difference should be 10. 23 + 10 = 33.

AI explanation

The differences between consecutive terms increase by 2 each time. Subtracting the terms gives 5 - 3 = 2, 9 - 5 = 4, 15 - 9 = 6, and 23 - 15 = 8. Adding the next even number, which is 10, to 23 gives the result 33.

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