Question

solve the problem of the 12)

Answer 1

in each triangle there is the the following series
1- 5*4+6
3- 8*3+5
so in 2-6*3+4=22

Answer 2

The answer is 22.

and here is your proof

the 1st triangle is solved as 5*4+6=26.
the 2nd is solved as 6*3+4=22.
the 3rd is solved as 8*3+5=29.

The answer which you had put tick is correct.

TQ ...!!

All the best.