Which one will replace the question mark ?

Concept

In a circular number puzzle like this, each term usually connects to the next through one repeating rule — often a multiplication (or division) combined with an addition or subtraction whose amount itself changes by a fixed step every time. The missing term is found by discovering this rule from the known consecutive pairs and then applying it once more.

Application

Reading clockwise from 3, the given terms are 3, 5, 8, 13, 22, and then the term to find.

1. 3 to 5: 3 × 2 − 1 = 5

2. 5 to 8: 5 × 2 − 2 = 8

3. 8 to 13: 8 × 2 − 3 = 13

4. 13 to 22: 13 × 2 − 4 = 22

5. 22 to the missing term: 22 × 2 − 5 = 39

Cross-check

The amount subtracted after doubling rises by exactly 1 at every step — 1, 2, 3, 4, and then 5 — so continuing that same arithmetic progression of subtractors independently confirms 22 × 2 − 5 = 39.

Answer

The missing number is 39.