Multiple choice

In the questions a number series is given with one term missing shown by question mark(?). This term is one of the four alternatives given under it. Find the right alternative. $5,3,10,8,17,15,?,24$

  1. $25$
  2. $23$
  3. $26$
  4. $27$
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C Correct answer
AI explanation

We separate the given sequence into two alternating subseries. The first subseries is 5, 10, 17 and the second subseries is 3, 8, 15, 24. The first subseries follows the pattern of the perfect squares 2, 3 and 4 each squared plus 1, so the next term is 5 squared plus 1, giving the result 26.

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