Bheja fry question

 This bheja fry question I came across when searching Internet.

212    =   25

213     =  36

214      =  47

215   =  ?? 

Answer 

When I saw this question, I was happy that finally I have solved a problem. 

But I kept scratching my head because in the second column, it has to be  49  instead of 47  !!!!

All must have understood what was my logic  !!!

There must be something else for solution. 

First row is  212  =  2 + 1 + 2 =  5

  Taking  2 which is the last digit of 212, we got 2 and 5.

Which is            25

Second row is 213  =  2  +  1  +  3  =  6

Taking 3 which is the last digit of 213, we got 3 and 6

Which is             36.

Third row is 214  =  2  +  1 +  4 =  7

Taking  7  which is the last digit of 214, we got  4 and 7.

Which is               47

Fourth row is   215  =  2  +  1  + 5 =  8

Taking  8  which is the last digit of 215,  we got  5 and 8. 

Which is                  58      !!!!!