HOMEWORK

Write a C program that calculates the average of twenty students in a class. An example run is given below:

Please enter a mark for student $1$: $90$

Please enter a mark for student $2$:$20$

Please enter a mark for S ${?}_{\text{s}\text{t}\text{u}\text{d}\text{e}\text{n}\text{t}}3$:$80$

Please enter a mark for student $4$: $50$

Please enter a mark for student $20$: $50$

The average is $60$

I USING WHILE LOOP

II USING DO$-$WHILE LOOP