Question

What is the next number in the series given below?
\(3, 5, 8, 13, 20, 31, ?\)

• A. 37
• B. 40
• C. 44
• D. 48

Answer 1

The Correct Option is C

Let’s examine the differences between consecutive terms in the series:

• 5 −3=2
• 8 −5=3
• 13 −8 =5
• 20 −13 =7
• 31 −20 =11

The differences are following a prime number sequence: 2, 3, 5, 7, 11. The next prime number is 13, so the next term in the series will be:

31 +13 =44

Conclusion: Thus, the next number in the series is 44