Question

If
817 = 7
909 = 9
453 = 3
Then
what is 1246 = ?

Answer 1

The ans is 4. The logic is ;
The digits are added and reduced to single digit.

Answer 2

Ans=4, add digit until single digit come

Answer 3

If 817 = 7, 909 = 9, 453 = 3 then what is 1246 = ?
1246 = 6 xD
or
1246 = 46 xD

Depending on how you count this.