Finding average of student grades

[chitchit]

Can anyone tell me what are the possible inputs to test the program that finds average of student grades?.

[jainbrijesh]

please explain your scenario, then only I can answer.

[chitchit]

please explain your scenario, then only I can answer.

This is one of the interview question. This raised more questions as to what type of input fields are?. numeric grades or character grades?. Either way the possible scnearios should be all the numbers added together/Total no of subjects should yield the average. The possible test inputs come under which category? Boundary values or error guessing?.