Question

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

Answer 1

1+4=5
2+5=12
3+6=21
8+11=?
A+B=C
from analyzing the pattern C=(A*B)+A
(1*4)+1=5
(2*5)+2=12
(3*6)+3=21
(8*11)+8=96 ANSWER

Answer 2

Answer:

$8+11=40$

Step-by-step explanation:

Given :1+4=5,2+5=12,3+6=21

To Find :8+11=?

Solution:

$1+4=5$

$2+5=7+\text{previous result} = 7+5=12$

$3+6=9+\text{previous result}=9+12=21$

$8+11=19+\text{previous result}=19+21=40$

So, ? = 40

Hence $8+11=40$