Can you solve this problem? 1+4 = 5. 2+5 = 12. 3+6 = 21. 8+11 = ? riddle

8 comments to “Can you solve this problem? 1+4 = 5. 2+5 = 12. 3+6 = 21. 8+11 = ? riddle”?

1. i believe its 40

2. @18:02 You are wrong, it is a*b+a, so the answer is 96.

3. a*(b+1)=answer, so 96

4. 40, 100%

5. 19

6. 42

7. 40

8. 96