How to calculate combined score of interview and written exam or to calculate your interview score from your combined score?

Combined Score is calculated using the following methodology:

Your written exam score out of 200 is converted to marks out of 100-

For example: If your written exam score is 80/200 then,

(80/200)*80= 32 out of 80

Similarly your interview score out of 100 is converted to marks out of 20-

For example: If your interview score is 70/100 then,

(70/100)*20= 14 out of 20

Now Combined Score = Written examination Score out of 80 + Interview Score out of 20

                                = 32+14= 46/100.