Question

If,
2 , 1 = 11
4 , 2 = 22
5 , 3 = 32
6, 5 = 51
Then,
8 , 4 = ?
Along with reasonable reason...

Answer 1

From the above possibilities, we understand that x,y=(y*10)+(x-y). You can apply this formula for the given condition which is x,y = (8*10) + (8-4).

The next steps of this equation is x,y = 80 + 4. Then the answer to this question is 84. When we apply this condition to all the possibilities, we will get the right answers.