209k views
9 votes
17, 18, 22, 31, 47, ?

User Chapelo
by
3.9k points

2 Answers

11 votes

Answer:

72

Explanation:

17+1=18

18+4=22

22+9=31

31+16=47

User Madmaze
by
3.9k points
8 votes
The next number would be 63
User Hamed Naeemaei
by
3.8k points