Question

1 + 4 = 5
2 + 5 = 12
3 + 6 = 21
8 ± 11 = ?​

Answer 1

Answer:

99

Step-by-step explanation:

4+1= 5

2+5= 12

Bcoz 5*2+2 = 12

6+3 = 21

Bcoz 6*3+3

8+11= 99

8*11+11= 99