Question

What is the missing number?

Answer 1

?= 11

Take the numbers from lower right triangle.

for first square it is 2+3+2= 7
For second, 4+1+3=8
Hence for third it will be
6+2+3=11

So, ?=11

Answer 2

19 is the solution
(6*2)-(2+3)=7
(2*4)-(3+1)=4
(4*6)-(3+2)=19

Answer 3

2+6+2-3=7;
4+2+3-1=8;
:.,6+4+3-2=11